Moral of the story? Back up your data in more than one format and in more than one place. And choose your storage medium based on the criticality of the data. Great video!
@@YoStu242Depends on the maker and the quality. I have cd's that are over 7 years old that still work to this day. I also bought cheaper ones that became unreadable after a year.
Re HDD life. Im a DC engineer for a US bank and we have a couple of Compaq ML370 servers running on their original 9.1GB 15,000rpm drives. Now 22 years old !.
that's actually a very very good idea (he said coming from 40 megabyte disc land 35 years or more ago) I favour photobooks and the best pics that are shining out amongst the rubbish...remember the 36 frame 35mm Fuji or Kodak film stock that used to make you a good photographer?????
You can store pics with a cloud provider and let them worry about replacing their infrastructure on a regular basis. The cost is minimal to the consumer compared to the effort, time and expense involved in trying to maintain adequate physical backups locally.
RAR archive format supports a special type of redundant data called the recovery record. Presence of recovery record makes an archive larger, but allows to repair it even in case of physical data damage due to disk failure or data loss of other kind, provided that the damage is not too severe. Such damage recovery can be done with Repair archive command. ZIP archive format does not support the recovery record. I have been using 2.5-inch external hard disks made by Toshiba since 2009. I bought two 250GB disks in 2009, then two 500GB disks in 2010, then two 1.5TB disks, then two 3TB disks, and, finally one 4TB disk two years ago. Yesterday I checked all data - it was perfect!
Lol same, they trash talk to much about HDD. Only one that died to me was the one that I hit super hard with my hand (it was in laptop) after I lose a game
I happened on ExplainingComputers while researching this very topic and I became an instant fan. The information is clearly transmitted and the sharp sense of humor was like watching a great video that not only informs but entertains too. Thanks for the updated video!
Yeah, it's perfect timing for me as well. I've just set up a server with a harddisk for backup and as a media library and was wondering how to actually backup that drive reliably and affordably because a lot of data, like a lot of older movies, I put on it is now only on that drive and on the original media and I had no idea how long that would be reliable. I assumed it's not forever, which is why I digitalized it in the first place to figure the rest out later. Which happened to be now, apparently 🤣
This is a subject I've needed to take more seriously for a long time. I'd be devastated if I lost all my family photographs. You've helped me come up with a new strategy about what I should be doing with them. Thank you for taking the time to make such a helpful video.
I worked at the Met Office in the late 90s, They were storing archived meteorological data on magnetic tape which could be retrieved by a robotic system called COSMOS. There is a salt mine in Cheshire where government departments and banks etc store their computer backups underground given the stable geology and high security available.
A couple of those salt mines were converted to hold the nations gas reserves….. but guess what, when Russia cut us short the reserves were empty and not been filled due to our wonderful governments shortsightedness
Good video. As far as data backup goes , I always subscribe to the 3-2-1 aproch :- Keep 3 copies On atleast 2 different types of media. 1. Of them stored off site. I guess you could count something like Google drive as the off site. As far as lifespan goes , i have VHS tapes that still viewable after 40+ years. the analogue nature of the data probably help. In that it dose not need to be bit perfect to still play.
@@ArcticTraveller-o7s I have scotch E180 with the BBC nuclear war move "THREADS" on it recorded on September 24 1984. th-cam.com/video/AL3mpzAvHFA/w-d-xo.htmlsi=B20Ojeo__DFO3K9m
@@alexxx4434 I had a box of 30x5.25 disks forgotten for 20 plus years. Took the disks out, turned the packets upside down and there was a noticeable oxide powder on the desk.
" the analogue nature of the data probably help. In that it does not need to be bit perfect to still play." Nor does digital data - in that the vast majority of digital storage systems (especially CDs and later versions thereof) have error-correcting encoding, which can detect errors, and correct for them. It's when that algorithm falls over due to a too-high error rate that gives us the "digital cliff", i. e. deterioration is undetectable until it suddenly falls off altogether. (For TV transmission, I actually preferred the gradual deterioration of analogue - you got some warning, unlike with digital TV it's fine until it suddenly cuts out!)
If you want to save the data from the non-working ones, I have a trick for you. It worked for me practically every time for C64 floppies, so it probably works OK with PC DD disks (not sure how well it works with HD disks though). Cut open the disk envelope, and the envelope of an other, preferably NOS sacrificial disk. Wash your hands, and remove the disk from the envelope, lay it on the table with soft, lint free cloth or soft paper towel underneath the disk. Spray some Windex on the disk surface, and wipe it gently but thoroughly with a soft paper towel, both sides of course, dry it with a hair dryer on the lowest heat setting (carefully, from at least 10"), then insert the disk in the new envelope and read it. I had many unreadable C64 disks that I found on cleanup day 20+ years ago, and they were stored on an attic. I used an archival software and a 1541 connected to my PC via the parallel port. The software reads the disk and shows which sectors are used, empty or unreadable. Some disks had 80+% unreadable sectors, and even most of those came up 100% readable after the cleaning. I guess the Windex removed the loose magnetic particles from the top layer that were constantly clogging the head. The paper towel had brown residue on it after every cleaned disk. It's very important to use a fresh, clean envelope for reading the cleaned disks, as the old envelope is probably contaminated with loose magnetic particles. You don't have to sacrifise a new disk for every cleaned disk, you can use one clean envelope for almost unlimited number of cleaned disks.
I have a 1990's McAfee anti-virus 5.25" disk that still works. Used about 5x total. Only read from. Dust free... It may be the more they're used the less they last.
@@mikeb3172 Of course excessive use will wear out floppies, but even brand new ones will fail if they were stored under bad conditions. I have bought brand new floppies that were moldy.
@@miller-joel I know this is a joke but I'm pretty sure something like storage can be almost infinity on any type of storage device with enough precision For example is a DVD and CD Even though it was the same size of disc, DVD can have more storage because it was made with more precision rather than CD Which is one of the reason why CD player can't play a DVD.
Not bad! Ive got a 400gb hitachi deskstar from 2005 that currently shows 87,000~ power on hours and 0 bad sectors. Ive had it in 3 different PC builds over the years and it currently is used to store games and non critical data on my most recent build. Thing is dang near silent and works flawlessly still! Hitachi makes great hard drives!!!
@@igorb2674 Nupe, not theory, fact. It only affected drives before 2002 though. Look up *IBM Deskstar 75GXP* ... nicknamed 'Death Star'. Wikipedia has neat photos of what happened on their insides... they literally self-destruct on use :D
In the 2000s DVDs were amazing for data backup. You could get a 50 pack for a few bucks and each one had 4.7GB which was huge back then. Just imagine what a modern equivalent could hold if the capacity continued to scale
Yeah I'd love a 5TB DVD. Even Blu-Ray disks are only 25GB or 50GB which is puny nowadays. On a positive note I have literally dozens of old flash drives from 1999 - 2004. I just finally backed them all up and the data was intact in all of them! I don't know if flash drives are made as high quality nowadays though. I paid like $400 for a 128MB flash drive back then. Maybe one of the reason they were so expensive is they were based on SLC memory? Cheap flash drives nowadays are absolute garbage.
Nah, not really. It's pretty hard to get much more that 25GB per layer since that would require UV lasers and the whole shebang that follows. There have been experimental and proposed higher capacity optical storage media, but.... don't expect them to hit the shelves anytime soon.....
Very useful info on a subject which I've not seen all in on place before. I have about twenty HDD's some over twenty years old that have been dormant for many years. I am going to have to spin up, check and backup any thing of interest. Also a growing collection of SSD's, seven at the moment, which I do power up every six months, but I was unaware of the fact it's best to leave them powered up for an hour or so to do some house keeping. Thanks for another really slick video.
Same here! :) I got a 1TB WD Caviar Green My Book from back in 2009 that I've been using since college. That the external case malfunctioned but, the HDD inside was still fine. I'm just using mine as an E: drive now for playing games on occasionally. Still going very strong.
You taught me alot my man. I learned everything from you, and still learn. When i sobered up 3 years ago, i jumped into computer building. Never in my life I thought id know, all thnx to you im 3 years experience in Computer Science. I dont need an expensive college for that, i have you.
Absolutely fantastic video Christopher. Thank you for these informative, easy to understand videos. I'm fascinated by Data Archival, particularly for family video tapes from childhood days etc. I've been wondering what is the best way to store this media to last over time and have been getting so many different answers. Your video was an excellent summary. I'll have to look into M-DISC and Archival Optical Media. Your method you suggested about preventing bit-rot by removing then re-writing data to Hard Disk Drives was invaluable. I've long been a believer in Hard Drives over SSD's for archival purposes after owning so many hard drives over the years and seeing their reliability even after sitting cold for years, the idea putting it all on an SSD and finding data is lost because it wasn't powered on terrifies me. Until I can get myself a system together to burn the important media onto archival discs, your method of re-writing data to HDD's on a reasonably regular basis to prevent bit-rot will be a fantastic short-term solution to ensure redundancy. I've found WD's RED NAS drives are fantastic for this purpose in my past experience. Their lower speeds and low heat-output has ensured a very low-failure rate for me. I can't recommend WD RED drives enough for those wanting simple archival drives, but as Christopher said - one must still be mindful of magnetic decay and have systems in place to be re-writing data regularly to ensure no bit-rot. Thank you for your videos, they are so so appreciated.
Excellent as usual. The data fade issue is there for tapes as well as oxide decay when the oxide layer no longer adheres to the mylar rendering the media unusable. Tape was also known for “print thru” where data one layer of the tape could affect the adjacent layer. Archive tapes used to be rewound once a year to prevent this problem.
@@addydiesel6627 All media suffers from some form of entropy. Any method of storing data needs a way of verifying that the data is still good and repairing/replacing it as appropriate. That includes HDDs, the mechanical bits can seize up, or the spindle motor can fail. I've had a lot of drives over the years that had a spindle drive fail. Recovering data at that point, requires sending it to a specialty company and hoping they have the appropriate parts to recover the data and that the head didn't crash into something important in the mean time.
Hey Chris.Great update to a very important topic. After your earlier video on this topic, I purchased an MDISC player and some MDISC DVR optical disks. They have proved to be a solid and reliable storage option, although the ones I bought only store 4.76 G at 4X speed. But when backing up important data, I am never in a hurry. It is also good you cleared up some confusion about SSD storage. I have always thought SSD's were less long term storage than HD's. But this video helps shed some light on that. After watching this video, I realized I need to power up some older 1.5 TB archive drives I haven't spun up in at least 2 years! It will be interesting to see if the data on them is still intact! Anyway, thanks for another super video! Take Good Care Chris.
PLEASE PROVE IT BY MAKING A TORRENT LINK WITH ALL YOUR DATA INCLUDING BANKING INFORMATION, YOUR CATS DATA OF BIRTH, YOUR MOTHERS FAVORITE FOOD AND WHERE YOU LIVE AS A TORRENT LINK AND PASTE IT AS A REPLY TO THIS REPLY.
Many filesystems dont have mechanisms for spotting small data corruptions and many more that theoretically support it dont do it automatically. I would suggest to look into which filesystem you used to store the data and research if it has one of these self-heal or corruption spotting mechanisms and if it is automatic or manual.
Thanks Chris. I didn't realise SSD's were so 'leaky' in a depowered state. One year isn't long (appreciate they're a bit better now, but still...). As many others have stated, it underlines the need for a well thought out data back-up routine. More ££ here for the vital tea and biscuits fund. All the best.
In our constant search for true genius, stop here and look no further. Christopher Barnatt has mastered so many different aspects of modern computing, I honestly do not understand how he retains all of that information between his ears. ANOTHER BRILLIANT VIDEO, Christopher! So very valuable to all computer users!!
I'd like a more in-depth explanation about this as well, but I do know that the data is written and stored in electrically charged flash memory. It just makes sense to me that an SSD won't hold onto data for long periods unless there's a special configuration for this, but then they'd likely have instructions to tell you when you should hook up the SSD to a power source.
Depends on the grade of the SSD. My 256GB Intel 2.5" Enterprise/Data-Center Class D3-S4610 SSD from my 2015-2019 build sat unused in a box from 2019 until recently, & I just recently started using it again in a 2.5 USB enclosure & it works fine. Also, even after 4 years of active gaming/stream/home use (2015-2019) as the boot drive for my PC, it only used about 1.3% of its rated endurance (which is 1600TB written). Professional-grade SSD's FTW - they are worth the extra money for peace of mind.
@@dystopia-usaI think they "might fail". I had an unused USB flash drive for 10 years and it retained data/worked fine. It stores data in a similar way as an SSD.
It's unsettling when storage media are not expected to last more than a few months or years. A more satisfying timescale would be that of a human life time, e.g. 100 years. When you store something, like photos, you should be able to retrieve them later in life.
Thank you! My husband and I always enjoy your videos! (We were JUST talking about this subject last week! Great timing!) We wish you continued success with your TH-cam channels. 👍
I still have a 1TB WD on one computer that says 117038 power hours on hours, or 13 years 131 days. It is showing smart warnings now with reallocated sectors upto 75% of it's maximum amount. It's not in use everything has been copied to an SSD but it's still powered up in the machine.
Something really important about this topic is that hard drives tend to fail on a bathtub curve. That is, either very very early in life or well out of warranty. It's definitely not a very normal distribution. That's why Backblaze's data suggested most drives last over 6 years yet their average lifespan was less than 3. This definitely makes the numbers harder to reason about.
**FACEPALM** You describe what you WANT TO see and not what the data says. Also what they(the researcher) gives as an estimate is of course no 1:1 explanation of their results, but a simplification, ballpark numbers or broke down best-practices. So to say: Subjective interpretations. You took the simplification, the analogy, the over-simplified conclusion and ignored the data. Or somehow thought their abstract IS the data? I do not even know if this is just stoopid or a satire, or ignorance?:) Also: Whatever you misunderstood about mathematics can be hopefully helped with by this: They took a small sample of 20k data points. Get a million or 10 and you will have your Gaussian normal distribution, which will in fact refute your conclusion. Also: You ignored everything that doesn't support your claim. Are you sure that you know what the word "reason" actually means? Hehehehe. Oh and just out of curiosity: Have you RTFM? Have you actually read the article or seen the raw data? NO! Because nothing there leads to the conclusions you made when digested and understood as a report you had read from the beginning to the end!
This is not about to laugh over you, but that you laugh with me: For example, take the time and have a look at "Backblaze Drive Stats for 2023" (or any of the other 20 or more reports). What do we see? Many many bell shaped curves. Should I lend you my glasses?!:) (The mentioned data: If you are interested, the data is available for free download under "Hard Drive Data and Stats", "Downloading the Raw HD Test Data")
No, the Bathtub curve has nothing to do with the disrepancy between the numbers. Their data showed that 65%+ of all drives they installed were still going after 6+ years. Seperate from that it showed that the average lifespan of all drives that did fail was 2 years and 6 Months. That average is only of the 35% failed drives, excluding the ones still going. As a quick reality check, with more than 50%of drives reaching 6 or more years of age, the average lifespan off all installed drives could not be 2.5 years. For comparison, even assuming all 35% that failed before the 6 year mark failed on the very first day, and the remaining 65%failed on the first day of their 6th year, the avergae lifespan of all installed drives would be 3.9 years.
@@dieSpinnt This is easily the most vocal idiotic comments here. A bathtub curve of failure incident will easily correspond to a normal curve of life span, they are two different metrics.
Dang m’dude. That was a great roundup! I don’t even know about m disc. And what’s worse, I don’t realize that all of my photos are at risk!!! Yikes!!! And thanks!!!!
A couple of years back I had to deal with some failing drives. So, after moving and duplicating data around for some weeks I kept getting intermittent issues. Tried both old and trusty drives and new ones, changed cables, changed sata ports... and finally decided to upgrade the power supply. It was all finally fixed with the power supply upgrade, and to my surprise all drives were fully functional, even the ones that previously failed to power on. But I did throw away half of my sata cables. Make sure to give your spinning rust enough power and connectors or cables seem to fail more often than the drives, in my experience.
Drives last a lot longer if they've got clean power. So a sufficiently powerful power supply and a UPS / line conditioner makes a significant difference.
My now retired main pc ran 24/7/356 with 3 used lap top drives for 8 years. I added a 2 tb drive as a main drive 2 years ago. Still running fine. But I have clean power were I live. Great vid Chris!
Thanks Chris 🙂 I have a 128GB Crucial M4 SSD that was in fairly regular use for over six years...I believe it still has around 50% of its useful life remaining. It's an older MLC unit but I've tried to avoid QLC drives in my more recent purchases. Thanks for the reminder to power up some little used SSDs...and it's probably time to check my backups!
A have one, too. Bought in 2011 and it still works fine. Yes, backups are important. And remember to backup the backups. The original and at least 2 copies on separate devices or more. Because the backup drive can break, too. Last year 2 or 3 of my backup HDDs broke. But I did not bother at all, because I have like 5 or 7 copies or so. The oldest HDDs that I have are about 15 years old or 16. Still work fine. None of the SSDs, which were actually in use, broke, the oldest one is the Crucial m4. The only SSD that broke was a brand new no name one which broke after 2 f hours!!! That was the first AND the last time I bought a no name SSD. After that I got several good, incl a Seagate FireCuda 530 2TB, 2.55 PBW(yes PETAbytes). It will last many many years.
It's such a shame that companies like crucial will sneak downgrades into their SSD, like the P2 got silently downgraded from to tlc to qlc. and WD hiding information about smr drives. that's why ssd tier list and people who dig at the component level are so important, most companies will keep this information hidden.
@@balsalmalberto8086 Yeah, I get TLC only. It least for now. Maybe once the affordable drives with high capacity of SSDs will be at 4TB or 8TB or more, the TBW number of QLC drives will be acceptable. With 2TB devices or less it is definitely not the case. For now it is TLC and if it costs 20 or 30 €/$/£ more, so be it.
@@balsalmalberto8086 Without the risk of another lawsuit they need to clearly specify what technology they're using. I don't think WD can go through this again.
The distrust of QLC is irrational. They outlast comparable HDDs by a lifespan multiple. PLC is already in the works. If your drives obsolete themselves before reaching their half-life, you're likely overspending.
This will be a long comment, but I figure I have some personal observations that might offer a few data points. For context, I've been using and maintaining computers since I was young(early 1990s), own a significant personal collection of computers(and drives) dating from the mid 1990s to current, and work for a medium-sized organization as an IT hardware manager. Long term storage of data on HDDs is a bit of a mixed bag. I was able to retrieve a full disk image of an HDD I used in a computer I owned when I was in high school(about 1999 or so) and retrieve practically everything. I also bought a machine last year whose drive was replaced in 1998 and used up to around 1999-2000 and hadn't been touched since; that data was still intact. However, most drives I have from the late '90s to early '00s have also experienced mechanical or controller failures that have rendered them inoperable; I highly suspect most of them weren't stored all that well. Modern HDDs tend to be significantly longer-lived as long as they don't experience early mechanical failures. I have laptop HDDs that I purchased around 2008 that are still working perfectly; they have long since been moved to external enclosures but I've used them to archive software installers and some other data for the past ten years and I haven't had a problem(yet). I also have a couple of 4TB drives that have been in my primary desktop since 2014-2015 that are still going strong, but these are mostly serve as backups and aren't regularly accessed. On the professional side of things, hard drives are rapidly being phased out for SSDs in business PCs. I'll get into SSD failures later, but I have seen more HDD failures in an office environment(mostly laptops) than I have SSDs. I haven't had great luck with old floppy disks, especially if they haven't been kept in pristine condition. I still need to go through my old floppies, but on average half of them haven't really held up. Granted, this was with them being stored in bad conditions(in a box in an unfinished basement), but I typically didn't use floppies for backup purposes. Even in the 1990s I had the opinion that they were fragile, but as a perpetually broke high schooler I couldn't step up to a Zip drive(and most computers I was around didn't have them either). CDs are also a bit of a mixed bag and very susceptible to bad storage conditions. Spills, especially on writable optical media, can be disastrous. Scratches are also an issue, so make sure that individual discs are protected. Contrariwise, I have had great luck with SD cards and USB flash drives. This used to be my primary means of archiving data that I would use between multiple computers. I did have a 16GB SD card fail, but that was after years of heavy use to where the drive was falling apart. I've also seen used cards fail, though there's a chance that they were cheap knock-offs. I have a relatively unique ExpressCard flash drive that has about 15 years of hard use and it has held up quite well(despite some physical damage). I've also had great luck with SSDs. I purchased my first SSDs in 2011(used, no less) and they're still operational. Granted, I used them as OS drives and not for long term storage of data, but they have held up very well and are still perfectly usable. I had a 1TB Crucial unit that failed on me a while ago, but I bought it used and it could have been mistreated. From a professional standpoint I've seen very few failures of SSDs, especially in comparison to HDDs. Off the top of my head I'd say I've seen maybe 5-7 SSD failures total over a decade of working in IT, and most of those failures were with older laptops(like the first Ultrabooks). Even having great luck with some formats, I can't stress enough the importance of backing up your data. Even if you're like me and don't trust/like cloud storage and can't really do offsite backup, having a local file server with a RAID array or even just running a backup task to multiple drives in a single computer is a very good idea. Having an imperfect backup plan(and realizing where it's imperfect) is better than having no backup plan at all.
Excellent video in regards to data storage! Getting M-Discs and an M-disc burner is in my to-do list for a while now. I've used those Zip, Jazz, Syjet, CD-W, DVD-R, BD-R, etc. throughout the years doing backups. Right now my main backups are two Synology NAS'es---one using RAID 1 and another using RAID 6. Both are using btrfs filesystem with scheduled data scrubbing every year and long extended SMART checks every 6 months. They are also syncing to other external backups for higher data redundancy and availability. I have a big album binder of CDs/DVDs/BDs backups I haven't checked for a while (more than 10 years) if they are still any good. They have been stored in a dry and cool place inside the house and watching your video kind of makes me want to see how it's doing now. 😅
Very informative! Thank you. I built my pc in dec 2007 and buyed a 320gb samsung HDD with it. I dont use this pc so much now but the 320gb disk still works perfect after over 16 years 😊
Nice review of the factors affecting longevity. HDDs and SSDs will last longer if you protect them from electrical surges, select enterprise quality units and have a low volume of data writes. I have 2 HDDs running in a NAS for 10 years without failure, but they are surge protected and have relatively low data writing. They may also fail tomorrow since they are complex units, so backup, backup, backup.
As always, very informative. It's great that you're taking the time to give us these appraisals as these help in deciding what methods and equipment to use. Thank you.
Thank you for excellent video on the storage longevity. Your channel is my go to place for reailble information on computer technology. Keep up the excellent work.
Out of curiosity, I just dug out and booted my first laptop. It's an Amstrad ANB-386SX40 from 1991, and it has a whopping 40 MEGABYTE hard drive ! I remember that I last booted this up in the early morning of January 1st 2000 (Some out there will know why curiosity made me wake it up then. :D ), and as expected, it's NiCad battery is shot to all hell now, reading zero volts on the multimeter even after being on charge for 20 minutes........ Anyway, on mains power it happily booted up into windows 3.1 (Which is lucky, because if I could even find my stack of 3.1 floppies, the chances of them all still working is low) and I get to wonder how the hell I actually did anything on such a blurt monochrome screen..... I somehow used to play Doom on this thing !!!! :D So, that's a 32/33 year old hard drive, that's been inactive for 24 years, and it still holds data/works............ Who's got an older one they want to tell us about ? :)
I have a considerable number of WD drives that are older than 5 years but it doesn't mean I completely trust them. That makes backups even more important.
I heard people using WD HDDs from the 80's that still work. I read somewhere they could probably last roughly a century or more with good care and storage. I am still using my first 1TB WD harddrive that I bought as an External Harddrive that I was using as a regular storage drive and actually ran programs on from 2009 to 2020 when the External connectors conked but, that's all it was and now it's an extra drive that I installed onto my computer that I install my Steam and Oculus games to and play them on. I rarely play games much these days so, the drive gets lots of rest and occasional storage. I have 3 WD HDDs on my computer that I'm trying to cycle through as I by a new one every few years and have a back up 500GB crash/factory reset contingency drive in case I need a drive to get back up and running to transfer the data onto my 10TB WD External HDD and then reformat and reuse it if there's some kind of reformatting issue or I accidently turn off my system in the middle of a Windows update, need to switch to a new OS or a cyber attack or something like that. I have a USB SATA cable to aid in transferring data once I take out the drive.
I refuse to buy WD drives these days, because I've had so many of them fail and they dropped the warranty period due to the failures, so it's not like it was just me.
@@SmallSpoonBrigade I have at least a dozen WD blacks in use right now. Just ran a smart test on them and they are showing 48,000+ hours and they had no problems on them.
Had a seagate that worked for 10 years before it gave a bios error. I have another WD since 13 years ago and it’s still working great without any errors
Thank you for the excellent video! A Western Digital Black 2TB HDD that I bought back in 2013 started to fail a few weeks ago. When it started to fail, the drive began making seeking noises at regular 2-3 second intervals without the drive being used, but I didn't really pay attention to this until the drive slowed down considerably, reading and writing at only 1-10 mb/sec when it normally is ~150 mb/sec. A few days later I started getting a SMART warning at bootup advising me to backup my data from that drive immediately due to imminent drive failure. I immediately began copying the data to another drive. That makes it about 10 years of life which is not too bad, I think.
Hi Chris- In addition to carving data into stone, I submit Punched Cards, Punched Tape and Microfiche as a means of storing data long-term. I still have data preserved on this media going on 40 years. Oh yes and printout although the paper is yellowing.😄
For some reason I had it in my head that hard drives would last far longer than 3 - 7 years. That is a shockingly short amount of time! I also had no idea about the concept of bit rot. This has given me good reasons to up my backup game to ensure my data is not victim to a common failure modality. Very interesting info!
They can last a lot longer under the right conditions but they're not really designed to. Heat, vibration, humidity, excessive write cycles will all shorten a drive's life. I have hard drives from the early 1990s that work just fine. Kept only for nostalgia since they're not very practical for backups. A lot of those old drives had a fairly easy life. Before the Internet it was common for some home PCs to be only powered on for a few hours a week. Also most PCs back then ran Windows 3.1 (or just plain DOS), which didn't thrash the hard disk like the later versions of Windows.
@@easternshore8367 Modern operating systems like Windows (and OS/2 before it), Linux, MacOS, etc will typically use the hard drive (or SSD) as secondary memory when the physical memory (RAM) is exhausted. This is called memory paging. On PCs with hard drives, excessive paging was colloquially known as "thrashing" where the hard disk activity would skyrocket due to memory starvation, and the PC would slow to a crawl. This can still happen on a modern PC with an SSD, but most PCs now have more memory than they need, so excessive paging is less common.
I never knew about the hard drive could last around 5 to 7 years but my hard drive is now 10+ years old and it still running fast as usual It's a miracle that your drive is still running for 2 decades. Probably my Hard drive is well done made
I have HPE 15k disks which have got in excess of 125,000 hours on them still spinning strong 24/7/365 serving up databases with constant reads and writes. Replaced 1 disk with a brand new WD equivelent which only lasted 3 years before failing, at which point i learned my lesson and replaced the WD with a refurbished HPE which is still going some 6 years later. HP make some very reliable disks indeed, I swear by them.
Another fine video. I didn't know that SSD or SD drives are constantly rewriting data to keep it current. You live and learn. It would be fascinating to know what they do when they are seemingly doing nothing. It's always interesting seeing colour photos degrade over the years. Most will be gone forever unfortunately in a few decades. It's worth a visit to the Discovery Museum in Newcastle as there is an absolutely perfect carbon ink image which will never degrade, I believe it's a Joseph Swan creation.
SSDs are overrated. The best SSDs are the oldest ones. But HDD is always improving their angular density. I think HDD will make a comeback once the hype is finished and especially when they realise data rots slowly on flash memory
@@addydiesel6627overrated, no. They are rated quite well. SSDs are excellent for those that want fast storage. They do the job very well. Too well. Games, photos, videos load instantly. I can load a enormous library of photos, videos in one go. Don't dismiss ssds just because they can 'fail'.
Modern-ish (past late 2000s or newer) hard drives also keep moving data and defragmenting when idle. Before NTFS you had to run manual defragmenter periodically and crash could have scrambled everything. @@addydiesel6627 HDDs are so slow, you get ridiculous load times on systems. They're still good for storage just put system files and games on SSD, and back up documents from them.
SSD for main storage, HDD for backups, the latter has more reliable recovery options for data that you don't want to lose. You can buy a half terabyte HDD for about $10 these days, then wait a few years when 1TB+ HDDs are more affordable
I have 9 "WD Red" 3Gb & 6Tb harddrives running in a Synology unit 24/7 for almost 11 years without giving a glitch (they 've been migrated twice to more recent units without any issues). To avoid possible bit rot issues, the arrays here are scrubbed data every 3 months, this is important to keep the data "in shape". I learned also from experience that drives spinning 24/7 have a better chance to survive over the long term, than drives that constantly start/stop only when you need it (for "power saving" e.g.). So it's interesting to know & keep in consideration for extending the longevity of the drives (and your data).
I am an IT manager and there are several (tens of) computers I have to service. 3 years old SATA SSD disks started to work very slow and I had to replace one of them as the computer became unusable. I managed to clone the system to the new disk, and then I tested the old disk using HDDScan. Noo bad sectors, but access time
I scratched the only LP that I ever owned and moved to CDs. Waited a long time for CDs to become recordable only the find the whole hifi thing to self-implode instead (DAT vs miniDisc). Like everyone else I moved to digital (and a high-end audio interface with studio monitors).
You made this Sinclair nerd smile with the microdrive cameo :-) Suggestion for a follow up video: show how ZFS and BTRFS automatically recover and self-heal from bad sectors.
ZFS doesn't really recover from bad sectors, it just handles them in a more elegant way than ext4, xfs, etc. Sometimes, you can carry on using an array with thousands of bad sectors for months, and sometimes the array becomes non-mountable a few days later. If you've got bad sectors you need to replace the drive ASAP, ZFS or not.
One thing that radically affects the life of physical hard drives is how often the drive is physically moved. Hard Drives in laptops are going to fail much more frequently than those of servers or large home computers that aren't moved. These days hard drives are used for bulk storage more than actually running the Operating System itself. If you have an OS that only spins up the drive when its actually needed, the physical hard drive will likely last longer, but it does increase the risk of motor failure. If the hard drive cannot spin up, the drive won't work... BTW... You do a top notch job of explaining all this.
7:36 Worth noting that while an LTO 9 tape is about 100 bucks, an LTO 9 drive will set you back 5 thousand. If you're and enterprise or a datacenter, it makes sense, but not for ordinary mortals.
Good stuff. A town near me, 15 or so years ago, used magnetic media to store audio and video files for a time capsule to be opened in 100 years, they laughed at me when I asked, “ how are they going to read it?” What do I know? lol
One recommendation is to include a player in the time capsule, and preferably with written instructions on how to use it. Or, if you time capsule is a spacecraft, emboss your instructions pictorially on a metal jacket as a cover for your media.
I have a Toshiba 3TB HDD running about 10 years (bought in March 2014), uptime is 26k hours. I think I might consider replacing it before something happens......
I started using Blu-Ray M-Discs for backuping the most important things like photos or important documents, ofcourse it's just another extra backup, not only one. I did some tests and it looks like it could really survive everything, only problem is how to read it in the future, but I have 3 BD drives, so at least for some time, I can read that. With HDD and SSD, both is pretty unsafe if you don't backup it on more places, but HDD will mostly give you some notice that it will fail soon, so you may backup at least some data in time, while SSD can just die instantly. So SSD for backups when it's only one place where you have it - definitely no. The worst thing for backups are flash drives and DVDs, even CD is much more reliable than DVD. On other hand even basic blu-ray discs are pretty reliable, I can recommend them. SD card may use the same technology as USB falsh drives, but SD cards are much more reliable because it doesn't have USB controller inside, which is what mostly fails in USB drives, not that memory itself or there are problems with bad contacts in USB connector. When you have such problem with SD card, you just put it into different reader. From my experiences, SD cards are pretty reliable, but I don't recommend micro SD, these are dying pretty often. About oldschool floppy disks, from my experiences, problem is mostly floppy drive which can be bad, diskettes itself mostly work if it's not damaged or you don't put it close to strong magnets. When you have some old data on them and modern USB floppy drive can't read it, don't panic, there is like 90+% chance that problem is bad quality modern floppy drive, not disks. Your only option is to find old computer with ok floppy drive and read it there. But even when it can actually read and writte, these newer USB floppy drives are really really slow. No, it was not THAT slow back in the day when people were using floppy disks, just try it in some old computer and you will see.
I've used local backup systems for years and have come to find them unreliable. Switched to Backblaze years ago. It just works. Never failed. I never have to worry about redundancy, reliability, etc. It's a rare case of a service about which I struggle to come up with something negative to say.
This is possibly one of the best videos on TH-cam when it comes to informational content. As someone who loves media preservation, this was a very insightful video.
Lenovo Thinkpad W520 SSD at 12 years and still going strong! I really should back up soon... :D Just glad to be on the right side of the bell curve... Thanks for the clear, uncluttered info.
Excellent Reminder to rotate storage of important data. I use 8 HDD. In preparing data for taxes as my CPA is in another state about 1,000 miles from me l rotate between drives daily. Excellent reminder. It takes only seconds between drives. Thanks for sharing. Mr. M. In Santa Cruz, California U.S.A.
*I have invested heavily in over 40 units of various SSD and Hard drives and back up a CLONE weekly and label it and store them in a sealed bag in the refrigerator since you need a STEADY temperature environment and your home refrigerator is the cheapest steady temp. environment .*
SSDs are basically all I use. Fast R/W speeds, a relatively long lifespan and the recent decrease in price make them my favorite storage option currently. Of course M-disk and putting HDDs in a Raid configuration have there own benefits. But for everyday computing, SSDs are the way to go.
Where are you getting these cheap SSDs from? All of our suppliers have raised their prices substantially in 2024. We even had several calls from different supplier reps weeks before the hike warning us of the impending price hike and to buy buy buy, and quick. Sure enough we had to raise our prices as our margins dropped to zero.
That was a great run down of info,... Thank you Chris. I think a future storage medium should be EggNog, as that always seems to last forever when given it at Christmas.....crikey... take care, 'till next time!
This a great video, thank you for the information and how you explained it. I came here because recently my WD Blue from 10 years ago (and heavily extremely abused) died and, since I could tell it was failing because of how it sounded I only lost little data, I backed up on time most of it.
I have two Crucial 1TB SATA's in my Unraid setup as cache drives. Both purchased and installed at the same time in my overgrown NAS rig. Barely a year in one of the SATA's with no warning went cold ☠. Well darn. Replaced it with another 1TB SATA (Teamgroup) and all is well and it's been at least 3 years in and the other Crucial is still working fine. Some things fail prematurely and the one that came of the line right behind it may outlive us. There's always and outlier in the batch. Good video with lots of detail. 💿
Greetings from Brazil! I love your videos! Simple, direct and with plenty of illustrations and super detailed explanations! Congratulations on the channel and always stay strong! Brazilian hugs!
Very useful, professional, and clear. Thank you. I work for more than 30 years now in my own little shop of computer repairs, and I can confirm, from my own experience, all you said here is based in reality. I will conclude, tough, we are still in the "Stone Age" of data preservation, and our tech do not evolved much in the last 30 -50 years, in this field. Like you said, we have much hope in the DNA data storing tech, yet we are light years away from this technology. Sad, we are a dumb race, with self-destruction instincts, spending 95% + of our resources and time, in creating weapons and perpetuating wars, to benefit a few dozens of "golden elites", interested in their own selfishness, and only that, than in our advances as human race. Data storage is fundamental for any advanced civilization, but we are not there, and I highly doubt we will ever be, with the current leadership and current tribal mentality.... We are closer to fusion than to genetic storage systems, yet we are a lot closer to self-destruction and/or absolute totalitarian regimes... Thank you for your efforts to share with us these very useful data, Sir.
In Ukraine we spent money on museums schools and hospitals instead of weapons, now all of that is destroyed by the guys who spent on weapons. So yes, human race is silly because we don't spend ENOUGH on weapons, as orks will inevitably invade and their goal is only destruction.
I have some good brand CDs I burnt more than 20 years ago, and they are still readable now. Crappy brand record able CDs though didn't last more than 2 years!
The first CD I ever burned was in 1998, a backup of all my programs, drivers, Windows updates and other stuff I had downloaded because 56k was miserably slow (and every time someone called or picked up the phone it disconnected). Printed out a nice label for it and everything and made a new "edition" at least once a year with updated stuff. I still have that very first CD-R and it works fine. :D
Many thanks for a great video. I have taken to powering up my various SSDs every so often using a USB hub and hope I'm doing the right thing to preserve the data
Simply "giving them juice" is not enough. The best thing to do is to check the read-speeds - just read the complete data area (check if the speeds are degrading by the way) and then let them idle for a while. However, the best and safest option is to perform a "force-refresh" if you notice the speeds degrading over time (there are many programs/tools that offer this option).
@@Wlad1 Thanks for your reply to my comment, Wlad1. I have six external SSDs that I have been "giving juice to" and hoped that would be sufficient. I shall look into your suggestions, so thank you again for your advice
This video was amazing and highly informative. I feel I learnt more by watching this video rather than anywhere else in the whole internet. Thank you for this great gift
I think most people focus on a drive's capacity and speed and rarely consider its endurance, which in my case using M.2 SSD is TBW. The potentially 1000 year M disc is impressive, especially the 100 &128GB BDXL, sad those never caught on mainstream. Historical documents like the US constitution have survived somewhat long term although I have seen it and it is pretty faded, even though it is kept in an ideal conditions state for preservation sake. Carving into stone, like the Egyptians, wins then. Also, God carving the ten commandments (Tablets of Stone). But even that method over long periods of time can fade due to weather conditions, and fragile to break if dropped (or thrown)
Right nothing lasts forever. Unless you have enough resources to make multiple backups with storage rooms with ideal preservation conditions to store them longterm. But annoyingly have to rewrite the data every once in a while to refresh the data.
Finally! The combo video I’ve been waiting for and I’m glad you mentioned the SSD being unpowered and losing data aspect. Many erroneously talk about SSDs like they’re invincible until they hit the TBW. I did not expect optical media to win but that does make sense why manufacturers are still selling it now.
The Old Man is a true Gem 💎 ...... In less than =< 2 mins , he shared conclusion & those who are interested can watch entire video ............. Subscribed 👌🏻
I just lost use of 2 Elements external Hard drives after about 2 & 3 years use. I wouldn't recommend the product. Luckily I was able to transfer all of my 6TB's of files to a Toshiba & Passport. It was a long process of transfer back to PC and onto the Toshiba & Passport but thankfully, nothing was lost other than the 2 external Hard drives. Time will tell how good the Toshiba is. I will chalk this up to a 300 dollar mistake. I would recommend anyone who starts to experience issues with them be sure to not unplug the HD or shutdown your computer and get on transferring files as soon as possible.
I've seen several instances now in which a company backed their data to tape boasting its longevity, retrieved the tape decades later, but then realized they didn't keep a drive around to actually read it. During the development of Grim Fandango Remastered, they were lucky to stumble across a tape drive in a storage unit. So far, the folks who found the ReBoot master tapes haven't been as lucky finding a D1 tape deck.
You are one of the real gems of TH-cam. No annoying background music or distracting jump cuts, just solid information backed with sources. Thank you.
Agreed!
Absolutely.
Yup, like my Professor in College, he is with Class, Professional and Integrity... Not toxified by Modern Clown Media...
Aye for sure
I totally agree, everything is understandable even for someone like me, thank Chris.
Moral of the story? Back up your data in more than one format and in more than one place. And choose your storage medium based on the criticality of the data. Great video!
Absolutly! The best defense is multiple backups!
I had few golden CD-R discs that started to rot physically after couple of years and small holes started to form on the data layer, very reliable heh
@@YoStu242Depends on the maker and the quality. I have cd's that are over 7 years old that still work to this day. I also bought cheaper ones that became unreadable after a year.
@@retropcscotland4645 7 years? I have regular consumer-grade CD-Rs from 20 years ago that are still fine.
alternative moral of the story: properly archived data will outlive any disc drive on the market 😎
Re HDD life. Im a DC engineer for a US bank and we have a couple of Compaq ML370 servers running on their original 9.1GB 15,000rpm drives. Now 22 years old !.
I would withdraw the money from my account before it crash...! 👀
I have some macs from the 90s with original working drives
@@JeSuisUnePatateRAID is the key. Redundancy
@@I_am_RazielOnly if your house doesn't burn down or the PC is stolen
@@zetectic7968 Correct. Assumuming that. But then the PC would be the least of the problems.
This video feels like a 2000's documentary. Loved it!
This channel never fails to bring me back to the early 2000s
Humanity peak years 😅
Suddenly, I feel the urgency to print out my pictures of happy gatherings, to be stored in good old-fashioned photo albums.
that's actually a very very good idea (he said coming from 40 megabyte disc land 35 years or more ago) I favour photobooks and the best pics that are shining out amongst the rubbish...remember the 36 frame 35mm Fuji or Kodak film stock that used to make you a good photographer?????
Optical Disc's such as DVD and Blu-ray M-Disc should work great as a long term data archival backup.
Don't use an inkjet printer
@@sir.fender6034 I would prefer cheaper LTO drives please.
You can store pics with a cloud provider and let them worry about replacing their infrastructure on a regular basis. The cost is minimal to the consumer compared to the effort, time and expense involved in trying to maintain adequate physical backups locally.
RAR archive format supports a special type of redundant data called the recovery record. Presence of recovery record makes an archive larger, but allows to repair it even in case of physical data damage due to disk failure or data loss of other kind, provided that the damage is not too severe. Such damage recovery can be done with Repair archive command. ZIP archive format does not support the recovery record.
I have been using 2.5-inch external hard disks made by Toshiba since 2009. I bought two 250GB disks in 2009, then two 500GB disks in 2010, then two 1.5TB disks, then two 3TB disks, and, finally one 4TB disk two years ago. Yesterday I checked all data - it was perfect!
around 16 years, and my old hdd is still working, pure magic, 60000 hours
😮😮😮
Mine is going 12 years. Thank God.
I buy in 2012 and still working fine
Lol same, they trash talk to much about HDD. Only one that died to me was the one that I hit super hard with my hand (it was in laptop) after I lose a game
@@karlojoki6314 lmao
I happened on ExplainingComputers while researching this very topic and I became an instant fan. The information is clearly transmitted and the sharp sense of humor was like watching a great video that not only informs but entertains too.
Thanks for the updated video!
Yeah, it's perfect timing for me as well. I've just set up a server with a harddisk for backup and as a media library and was wondering how to actually backup that drive reliably and affordably because a lot of data, like a lot of older movies, I put on it is now only on that drive and on the original media and I had no idea how long that would be reliable. I assumed it's not forever, which is why I digitalized it in the first place to figure the rest out later. Which happened to be now, apparently 🤣
This is a subject I've needed to take more seriously for a long time. I'd be devastated if I lost all my family photographs. You've helped me come up with a new strategy about what I should be doing with them. Thank you for taking the time to make such a helpful video.
Not only that (and not to be alarming), but also consider photo and video formats. At some time, a huge conversion may need to happen, LOL.
@@louf7178 I mean.. I can still play all my SNES and Amiga games in 2024 on emulators so I'm not that worried we'll lose the algorithms tbh..
@@benstaniford ok
I worked at the Met Office in the late 90s, They were storing archived meteorological data on magnetic tape which could be retrieved by a robotic system called COSMOS. There is a salt mine in Cheshire where government departments and banks etc store their computer backups underground given the stable geology and high security available.
I am still working on mainframes... we still use Tape drives too for archive. 😂
I also need to dig my personal salt mine or coal mine to store my back up data.
Mmmm. Salty backups.
A couple of those salt mines were converted to hold the nations gas reserves….. but guess what, when Russia cut us short the reserves were empty and not been filled due to our wonderful governments shortsightedness
Some of those old cave paintings are still hanging in there.
Good video. As far as data backup goes , I always subscribe to the 3-2-1 aproch :-
Keep 3 copies
On atleast 2 different types of media.
1. Of them stored off site.
I guess you could count something like Google drive as the off site.
As far as lifespan goes , i have VHS tapes that still viewable after 40+ years.
the analogue nature of the data probably help. In that it dose not need to be bit perfect to still play.
@@ArcticTraveller-o7s I have scotch E180 with the BBC nuclear war move "THREADS" on it recorded on September 24 1984. th-cam.com/video/AL3mpzAvHFA/w-d-xo.htmlsi=B20Ojeo__DFO3K9m
@@ArcticTraveller-o7sth-cam.com/video/AL3mpzAvHFA/w-d-xo.htmlsi=B20Ojeo__DFO3K9m
VHS might still play but the recording quality probably slowly degrade due to magetic dissipation.
@@alexxx4434 I had a box of 30x5.25 disks forgotten for 20 plus years. Took the disks out, turned the packets upside down and there was a noticeable oxide powder on the desk.
" the analogue nature of the data probably help. In that it does not need to be bit perfect to still play." Nor does digital data - in that the vast majority of digital storage systems (especially CDs and later versions thereof) have error-correcting encoding, which can detect errors, and correct for them. It's when that algorithm falls over due to a too-high error rate that gives us the "digital cliff", i. e. deterioration is undetectable until it suddenly falls off altogether. (For TV transmission, I actually preferred the gradual deterioration of analogue - you got some warning, unlike with digital TV it's fine until it suddenly cuts out!)
I recently pulled out a batch of old 5.25" floppies from the eighties. I was shocked to find most of them still work.
If you want to save the data from the non-working ones, I have a trick for you. It worked for me practically every time for C64 floppies, so it probably works OK with PC DD disks (not sure how well it works with HD disks though).
Cut open the disk envelope, and the envelope of an other, preferably NOS sacrificial disk. Wash your hands, and remove the disk from the envelope, lay it on the table with soft, lint free cloth or soft paper towel underneath the disk. Spray some Windex on the disk surface, and wipe it gently but thoroughly with a soft paper towel, both sides of course, dry it with a hair dryer on the lowest heat setting (carefully, from at least 10"), then insert the disk in the new envelope and read it.
I had many unreadable C64 disks that I found on cleanup day 20+ years ago, and they were stored on an attic. I used an archival software and a 1541 connected to my PC via the parallel port. The software reads the disk and shows which sectors are used, empty or unreadable. Some disks had 80+% unreadable sectors, and even most of those came up 100% readable after the cleaning. I guess the Windex removed the loose magnetic particles from the top layer that were constantly clogging the head. The paper towel had brown residue on it after every cleaned disk.
It's very important to use a fresh, clean envelope for reading the cleaned disks, as the old envelope is probably contaminated with loose magnetic particles. You don't have to sacrifise a new disk for every cleaned disk, you can use one clean envelope for almost unlimited number of cleaned disks.
@@mrnmrn1 That is a good advice.
I have a 1990's McAfee anti-virus 5.25" disk that still works. Used about 5x total. Only read from. Dust free... It may be the more they're used the less they last.
@@mikeb3172 Of course excessive use will wear out floppies, but even brand new ones will fail if they were stored under bad conditions. I have bought brand new floppies that were moldy.
did any of them have data on them?
And clay tablets last thousands of years.
But how many terabytes do they store?
@@miller-joel I know this is a joke but I'm pretty sure something like storage can be almost infinity on any type of storage device with enough precision
For example is a DVD and CD
Even though it was the same size of disc, DVD can have more storage because it was made with more precision rather than CD
Which is one of the reason why CD player can't play a DVD.
@@neutral6818 I just know that this video gave me a deep depression and constant nightmares.
As long as they are stored correctly ;O)
Enough to store 1KB data per piece.
My CD from Uni back in 2000 luckily lasted for over 20 years. Its still readable but now backed up.
I guess two of the pyramids at Gizeh are for backup only.
🤣
17:00 for the reference
The small one has the checksums.
Wait till they find out that every Block has a Hightech Crystal "DVD" inside, like a Time Capsule. Of 2 Million years of the Galactic Empire, LOL.
yup. they're down to their last sphinx
Hello Chris. I have a deskstar hard drive from 2006. it has worked for more than 94,000 hours. and it still works today.
Not bad! Ive got a 400gb hitachi deskstar from 2005 that currently shows 87,000~ power on hours and 0 bad sectors. Ive had it in 3 different PC builds over the years and it currently is used to store games and non critical data on my most recent build. Thing is dang near silent and works flawlessly still! Hitachi makes great hard drives!!!
Deskstar?? Lucky you didn’t get the 80 gbyte ones. Those self-erased with a 100% failure rate within a year :D … we had four at our business -_-
I am still using the same hitachi 80gb sata drive from 2006 in my new computer so there goes your theory....
@@igorb2674 Nupe, not theory, fact. It only affected drives before 2002 though. Look up *IBM Deskstar 75GXP* ... nicknamed 'Death Star'. Wikipedia has neat photos of what happened on their insides... they literally self-destruct on use :D
@@igorb2674 IBM Deskstar 75GXP ... look it up. Love how facts are opinions here.
In the 2000s DVDs were amazing for data backup. You could get a 50 pack for a few bucks and each one had 4.7GB which was huge back then.
Just imagine what a modern equivalent could hold if the capacity continued to scale
Yeah I'd love a 5TB DVD. Even Blu-Ray disks are only 25GB or 50GB which is puny nowadays. On a positive note I have literally dozens of old flash drives from 1999 - 2004. I just finally backed them all up and the data was intact in all of them! I don't know if flash drives are made as high quality nowadays though. I paid like $400 for a 128MB flash drive back then. Maybe one of the reason they were so expensive is they were based on SLC memory? Cheap flash drives nowadays are absolute garbage.
There was a recent announcement of scientists developing a 125TB optical disc. Unfortunately they're in China so you know it's not real.
It has continued to scale. There is Blue Ray and M-DISC
Nah, not really. It's pretty hard to get much more that 25GB per layer since that would require UV lasers and the whole shebang that follows. There have been experimental and proposed higher capacity optical storage media, but.... don't expect them to hit the shelves anytime soon.....
@@thelbtloverI have cd and dvd from that time. Many do not work anymore.
I always back up everything in two external drives...one SSD and one HDD... It has saved me several times... 💥
Very useful info on a subject which I've not seen all in on place before. I have about twenty HDD's some over twenty years old that have been dormant for many years. I am going to have to spin up, check and backup any thing of interest. Also a growing collection of SSD's, seven at the moment, which I do power up every six months, but I was unaware of the fact it's best to leave them powered up for an hour or so to do some house keeping. Thanks for another really slick video.
My oldest drive (WD Elements, 1TB) has been running since 2009. No bad sectors yet.
Mines from 2013 still works
I've got a 1TB WD Elements, too, probably the same age and it's also running fine. (knock on silicon)
LOL. I have WD My Passport 1TB. Twice. First one I bought in 2019, then the other I bought in mid 2023. All not recognized/failed just a month ago.
Same here! :) I got a 1TB WD Caviar Green My Book from back in 2009 that I've been using since college. That the external case malfunctioned but, the HDD inside was still fine. I'm just using mine as an E: drive now for playing games on occasionally. Still going very strong.
You taught me alot my man. I learned everything from you, and still learn. When i sobered up 3 years ago, i jumped into computer building. Never in my life I thought id know, all thnx to you im 3 years experience in Computer Science. I dont need an expensive college for that, i have you.
Cool. :) Thanks for watching.
Good deal! "Keep the Faith".
Absolutely fantastic video Christopher. Thank you for these informative, easy to understand videos. I'm fascinated by Data Archival, particularly for family video tapes from childhood days etc. I've been wondering what is the best way to store this media to last over time and have been getting so many different answers. Your video was an excellent summary. I'll have to look into M-DISC and Archival Optical Media. Your method you suggested about preventing bit-rot by removing then re-writing data to Hard Disk Drives was invaluable. I've long been a believer in Hard Drives over SSD's for archival purposes after owning so many hard drives over the years and seeing their reliability even after sitting cold for years, the idea putting it all on an SSD and finding data is lost because it wasn't powered on terrifies me. Until I can get myself a system together to burn the important media onto archival discs, your method of re-writing data to HDD's on a reasonably regular basis to prevent bit-rot will be a fantastic short-term solution to ensure redundancy. I've found WD's RED NAS drives are fantastic for this purpose in my past experience. Their lower speeds and low heat-output has ensured a very low-failure rate for me. I can't recommend WD RED drives enough for those wanting simple archival drives, but as Christopher said - one must still be mindful of magnetic decay and have systems in place to be re-writing data regularly to ensure no bit-rot. Thank you for your videos, they are so so appreciated.
Excellent as usual. The data fade issue is there for tapes as well as oxide decay when the oxide layer no longer adheres to the mylar rendering the media unusable. Tape was also known for “print thru” where data one layer of the tape could affect the adjacent layer. Archive tapes used to be rewound once a year to prevent this problem.
NO data fade with HDD 👌
@@addydiesel6627 All media suffers from some form of entropy. Any method of storing data needs a way of verifying that the data is still good and repairing/replacing it as appropriate. That includes HDDs, the mechanical bits can seize up, or the spindle motor can fail. I've had a lot of drives over the years that had a spindle drive fail. Recovering data at that point, requires sending it to a specialty company and hoping they have the appropriate parts to recover the data and that the head didn't crash into something important in the mean time.
Hey Chris.Great update to a very important topic. After your earlier video on this topic, I purchased an MDISC player and some MDISC DVR optical disks. They have proved to be a solid and reliable storage option, although the ones I bought only store 4.76 G at 4X speed. But when backing up important data, I am never in a hurry. It is also good you cleared up some confusion about SSD storage. I have always thought SSD's were less long term storage than HD's. But this video helps shed some light on that. After watching this video, I realized I need to power up some older 1.5 TB archive drives I haven't spun up in at least 2 years! It will be interesting to see if the data on them is still intact! Anyway, thanks for another super video! Take Good Care Chris.
PLEASE PROVE IT BY MAKING A TORRENT LINK WITH ALL YOUR DATA INCLUDING BANKING INFORMATION, YOUR CATS DATA OF BIRTH, YOUR MOTHERS FAVORITE FOOD AND WHERE YOU LIVE AS A TORRENT LINK AND PASTE IT AS A REPLY TO THIS REPLY.
Many filesystems dont have mechanisms for spotting small data corruptions and many more that theoretically support it dont do it automatically. I would suggest to look into which filesystem you used to store the data and research if it has one of these self-heal or corruption spotting mechanisms and if it is automatic or manual.
@@ComputerHead0001
Thanks Chris. I didn't realise SSD's were so 'leaky' in a depowered state. One year isn't long (appreciate they're a bit better now, but still...). As many others have stated, it underlines the need for a well thought out data back-up routine. More ££ here for the vital tea and biscuits fund. All the best.
Thanks for the tea and biscuits fund, appreciated. :)
hdd also have same problem in a depowered state
In our constant search for true genius, stop here and look no further.
Christopher Barnatt has mastered so many different aspects of modern computing,
I honestly do not understand how he retains all of that information between his ears.
ANOTHER BRILLIANT VIDEO, Christopher! So very valuable to all computer users!!
He makes being smart look easy.
SSD can loose data if unpowered for more then a year. - Hope they explain in detail about this. I use one for back up that sits in a drawer.
I'd like a more in-depth explanation about this as well, but I do know that the data is written and stored in electrically charged flash memory. It just makes sense to me that an SSD won't hold onto data for long periods unless there's a special configuration for this, but then they'd likely have instructions to tell you when you should hook up the SSD to a power source.
I'm now powering my backup SSD as soon as I heard it.
12:30
Depends on the grade of the SSD. My 256GB Intel 2.5" Enterprise/Data-Center Class D3-S4610 SSD from my 2015-2019 build sat unused in a box from 2019 until recently, & I just recently started using it again in a 2.5 USB enclosure & it works fine. Also, even after 4 years of active gaming/stream/home use (2015-2019) as the boot drive for my PC, it only used about 1.3% of its rated endurance (which is 1600TB written). Professional-grade SSD's FTW - they are worth the extra money for peace of mind.
@@dystopia-usaI think they "might fail". I had an unused USB flash drive for 10 years and it retained data/worked fine. It stores data in a similar way as an SSD.
It's unsettling when storage media are not expected to last more than a few months or years. A more satisfying timescale would be that of a human life time, e.g. 100 years. When you store something, like photos, you should be able to retrieve them later in life.
One of best Internet teachers in the world
Thank you! My husband and I always enjoy your videos! (We were JUST talking about this subject last week! Great timing!) We wish you continued success with your TH-cam channels. 👍
Your channel photo is of a male. Your husband?
Your husband is on your channel avatar then?
@@igorb2674 huh?
Some of my PC friends have been debating this topic for a while now!! GREAT TOPIC!!! As always, YOU ROCK MR. BARNATT!!!!
I still have a 1TB WD on one computer that says 117038 power hours on hours, or 13 years 131 days. It is showing smart warnings now with reallocated sectors upto 75% of it's maximum amount. It's not in use everything has been copied to an SSD but it's still powered up in the machine.
I love how this video is giving early TH-cam video vibes, very simple yet very informative. Keep it up!!
Something really important about this topic is that hard drives tend to fail on a bathtub curve. That is, either very very early in life or well out of warranty. It's definitely not a very normal distribution. That's why Backblaze's data suggested most drives last over 6 years yet their average lifespan was less than 3. This definitely makes the numbers harder to reason about.
**FACEPALM** You describe what you WANT TO see and not what the data says. Also what they(the researcher) gives as an estimate is of course no 1:1 explanation of their results, but a simplification, ballpark numbers or broke down best-practices. So to say: Subjective interpretations. You took the simplification, the analogy, the over-simplified conclusion and ignored the data. Or somehow thought their abstract IS the data? I do not even know if this is just stoopid or a satire, or ignorance?:)
Also: Whatever you misunderstood about mathematics can be hopefully helped with by this: They took a small sample of 20k data points. Get a million or 10 and you will have your Gaussian normal distribution, which will in fact refute your conclusion.
Also: You ignored everything that doesn't support your claim. Are you sure that you know what the word "reason" actually means? Hehehehe.
Oh and just out of curiosity: Have you RTFM? Have you actually read the article or seen the raw data? NO! Because nothing there leads to the conclusions you made when digested and understood as a report you had read from the beginning to the end!
This is not about to laugh over you, but that you laugh with me:
For example, take the time and have a look at "Backblaze Drive Stats for 2023" (or any of the other 20 or more reports). What do we see? Many many bell shaped curves. Should I lend you my glasses?!:)
(The mentioned data: If you are interested, the data is available for free download under "Hard Drive Data and Stats", "Downloading the Raw HD Test Data")
@@dieSpinnt This comment reads like AI generated nonsense.
No, the Bathtub curve has nothing to do with the disrepancy between the numbers. Their data showed that 65%+ of all drives they installed were still going after 6+ years.
Seperate from that it showed that the average lifespan of all drives that did fail was 2 years and 6 Months. That average is only of the 35% failed drives, excluding the ones still going.
As a quick reality check, with more than 50%of drives reaching 6 or more years of age, the average lifespan off all installed drives could not be 2.5 years. For comparison, even assuming all 35% that failed before the 6 year mark failed on the very first day, and the remaining 65%failed on the first day of their 6th year, the avergae lifespan of all installed drives would be 3.9 years.
@@dieSpinnt This is easily the most vocal idiotic comments here.
A bathtub curve of failure incident will easily correspond to a normal curve of life span, they are two different metrics.
Dang m’dude. That was a great roundup! I don’t even know about m disc. And what’s worse, I don’t realize that all of my photos are at risk!!! Yikes!!! And thanks!!!!
A couple of years back I had to deal with some failing drives. So, after moving and duplicating data around for some weeks I kept getting intermittent issues. Tried both old and trusty drives and new ones, changed cables, changed sata ports... and finally decided to upgrade the power supply. It was all finally fixed with the power supply upgrade, and to my surprise all drives were fully functional, even the ones that previously failed to power on. But I did throw away half of my sata cables.
Make sure to give your spinning rust enough power and connectors or cables seem to fail more often than the drives, in my experience.
Agreed. Had a couple sata cables act funny (super slow transfer). Luckily no data loss as HDD transfer protocol seems to have compensated
Drives last a lot longer if they've got clean power. So a sufficiently powerful power supply and a UPS / line conditioner makes a significant difference.
Hard drive need power supply? And is it changeable?
What a great way to make a 15 second video into a 15+ minute one
You are answering questions that I have not considered asking.
Fabulous level of detail here.
Thank very much!
My now retired main pc ran 24/7/356 with 3 used lap top drives for 8 years. I added a 2 tb drive as a main drive 2 years ago. Still running fine. But I have clean power were I live.
Great vid Chris!
What's clean power?
@@feynstein1004 No brown outs.
@@menone8532And what are those?
Thanks Chris 🙂
I have a 128GB Crucial M4 SSD that was in fairly regular use for over six years...I believe it still has around 50% of its useful life remaining. It's an older MLC unit but I've tried to avoid QLC drives in my more recent purchases.
Thanks for the reminder to power up some little used SSDs...and it's probably time to check my backups!
A have one, too. Bought in 2011 and it still works fine. Yes, backups are important. And remember to backup the backups. The original and at least 2 copies on separate devices or more. Because the backup drive can break, too. Last year 2 or 3 of my backup HDDs broke. But I did not bother at all, because I have like 5 or 7 copies or so.
The oldest HDDs that I have are about 15 years old or 16. Still work fine. None of the SSDs, which were actually in use, broke, the oldest one is the Crucial m4.
The only SSD that broke was a brand new no name one which broke after 2 f hours!!! That was the first AND the last time I bought a no name SSD. After that I got several good, incl a Seagate FireCuda 530 2TB, 2.55 PBW(yes PETAbytes). It will last many many years.
It's such a shame that companies like crucial will sneak downgrades into their SSD, like the P2 got silently downgraded from to tlc to qlc. and WD hiding information about smr drives. that's why ssd tier list and people who dig at the component level are so important, most companies will keep this information hidden.
@@balsalmalberto8086 Yeah, I get TLC only. It least for now. Maybe once the affordable drives with high capacity of SSDs will be at 4TB or 8TB or more, the TBW number of QLC drives will be acceptable. With 2TB devices or less it is definitely not the case. For now it is TLC and if it costs 20 or 30 €/$/£ more, so be it.
@@balsalmalberto8086 Without the risk of another lawsuit they need to clearly specify what technology they're using. I don't think WD can go through this again.
The distrust of QLC is irrational. They outlast comparable HDDs by a lifespan multiple. PLC is already in the works.
If your drives obsolete themselves before reaching their half-life, you're likely overspending.
This will be a long comment, but I figure I have some personal observations that might offer a few data points. For context, I've been using and maintaining computers since I was young(early 1990s), own a significant personal collection of computers(and drives) dating from the mid 1990s to current, and work for a medium-sized organization as an IT hardware manager.
Long term storage of data on HDDs is a bit of a mixed bag. I was able to retrieve a full disk image of an HDD I used in a computer I owned when I was in high school(about 1999 or so) and retrieve practically everything. I also bought a machine last year whose drive was replaced in 1998 and used up to around 1999-2000 and hadn't been touched since; that data was still intact. However, most drives I have from the late '90s to early '00s have also experienced mechanical or controller failures that have rendered them inoperable; I highly suspect most of them weren't stored all that well. Modern HDDs tend to be significantly longer-lived as long as they don't experience early mechanical failures. I have laptop HDDs that I purchased around 2008 that are still working perfectly; they have long since been moved to external enclosures but I've used them to archive software installers and some other data for the past ten years and I haven't had a problem(yet). I also have a couple of 4TB drives that have been in my primary desktop since 2014-2015 that are still going strong, but these are mostly serve as backups and aren't regularly accessed. On the professional side of things, hard drives are rapidly being phased out for SSDs in business PCs. I'll get into SSD failures later, but I have seen more HDD failures in an office environment(mostly laptops) than I have SSDs.
I haven't had great luck with old floppy disks, especially if they haven't been kept in pristine condition. I still need to go through my old floppies, but on average half of them haven't really held up. Granted, this was with them being stored in bad conditions(in a box in an unfinished basement), but I typically didn't use floppies for backup purposes. Even in the 1990s I had the opinion that they were fragile, but as a perpetually broke high schooler I couldn't step up to a Zip drive(and most computers I was around didn't have them either).
CDs are also a bit of a mixed bag and very susceptible to bad storage conditions. Spills, especially on writable optical media, can be disastrous. Scratches are also an issue, so make sure that individual discs are protected.
Contrariwise, I have had great luck with SD cards and USB flash drives. This used to be my primary means of archiving data that I would use between multiple computers. I did have a 16GB SD card fail, but that was after years of heavy use to where the drive was falling apart. I've also seen used cards fail, though there's a chance that they were cheap knock-offs. I have a relatively unique ExpressCard flash drive that has about 15 years of hard use and it has held up quite well(despite some physical damage).
I've also had great luck with SSDs. I purchased my first SSDs in 2011(used, no less) and they're still operational. Granted, I used them as OS drives and not for long term storage of data, but they have held up very well and are still perfectly usable. I had a 1TB Crucial unit that failed on me a while ago, but I bought it used and it could have been mistreated. From a professional standpoint I've seen very few failures of SSDs, especially in comparison to HDDs. Off the top of my head I'd say I've seen maybe 5-7 SSD failures total over a decade of working in IT, and most of those failures were with older laptops(like the first Ultrabooks).
Even having great luck with some formats, I can't stress enough the importance of backing up your data. Even if you're like me and don't trust/like cloud storage and can't really do offsite backup, having a local file server with a RAID array or even just running a backup task to multiple drives in a single computer is a very good idea. Having an imperfect backup plan(and realizing where it's imperfect) is better than having no backup plan at all.
Excellent video in regards to data storage! Getting M-Discs and an M-disc burner is in my to-do list for a while now. I've used those Zip, Jazz, Syjet, CD-W, DVD-R, BD-R, etc. throughout the years doing backups. Right now my main backups are two Synology NAS'es---one using RAID 1 and another using RAID 6. Both are using btrfs filesystem with scheduled data scrubbing every year and long extended SMART checks every 6 months. They are also syncing to other external backups for higher data redundancy and availability.
I have a big album binder of CDs/DVDs/BDs backups I haven't checked for a while (more than 10 years) if they are still any good. They have been stored in a dry and cool place inside the house and watching your video kind of makes me want to see how it's doing now. 😅
Very informative! Thank you.
I built my pc in dec 2007 and buyed a 320gb samsung HDD with it.
I dont use this pc so much now but the 320gb disk still works perfect after over 16 years 😊
Great to hear!
Nice review of the factors affecting longevity. HDDs and SSDs will last longer if you protect them from electrical surges, select enterprise quality units and have a low volume of data writes. I have 2 HDDs running in a NAS for 10 years without failure, but they are surge protected and have relatively low data writing. They may also fail tomorrow since they are complex units, so backup, backup, backup.
As always, very informative. It's great that you're taking the time to give us these appraisals as these help in deciding what methods and equipment to use. Thank you.
Thank you for excellent video on the storage longevity. Your channel is my go to place for reailble information on computer technology. Keep up the excellent work.
Out of curiosity, I just dug out and booted my first laptop. It's an Amstrad ANB-386SX40 from 1991, and it has a whopping 40 MEGABYTE hard drive !
I remember that I last booted this up in the early morning of January 1st 2000 (Some out there will know why curiosity made me wake it up then. :D ), and as expected, it's NiCad battery is shot to all hell now, reading zero volts on the multimeter even after being on charge for 20 minutes........ Anyway, on mains power it happily booted up into windows 3.1 (Which is lucky, because if I could even find my stack of 3.1 floppies, the chances of them all still working is low) and I get to wonder how the hell I actually did anything on such a blurt monochrome screen..... I somehow used to play Doom on this thing !!!! :D
So, that's a 32/33 year old hard drive, that's been inactive for 24 years, and it still holds data/works............ Who's got an older one they want to tell us about ? :)
I have 2 seagate drives that are from 2006 and 2007 respectively. Both were used in a workstation. Still both work perfectly
This channel is amazing! Thank you so much for sharing your knowledge. Hugs from Brazil.
Thanks for watching. :)
I have a considerable number of WD drives that are older than 5 years but it doesn't mean I completely trust them. That makes backups even more important.
I heard people using WD HDDs from the 80's that still work. I read somewhere they could probably last roughly a century or more with good care and storage. I am still using my first 1TB WD harddrive that I bought as an External Harddrive that I was using as a regular storage drive and actually ran programs on from 2009 to 2020 when the External connectors conked but, that's all it was and now it's an extra drive that I installed onto my computer that I install my Steam and Oculus games to and play them on. I rarely play games much these days so, the drive gets lots of rest and occasional storage. I have 3 WD HDDs on my computer that I'm trying to cycle through as I by a new one every few years and have a back up 500GB crash/factory reset contingency drive in case I need a drive to get back up and running to transfer the data onto my 10TB WD External HDD and then reformat and reuse it if there's some kind of reformatting issue or I accidently turn off my system in the middle of a Windows update, need to switch to a new OS or a cyber attack or something like that. I have a USB SATA cable to aid in transferring data once I take out the drive.
I refuse to buy WD drives these days, because I've had so many of them fail and they dropped the warranty period due to the failures, so it's not like it was just me.
@@SmallSpoonBrigade I have at least a dozen WD blacks in use right now. Just ran a smart test on them and they are showing 48,000+ hours and they had no problems on them.
You are an absolute geek.
And that's exactly why I keep watching your videos.
Had a seagate that worked for 10 years before it gave a bios error. I have another WD since 13 years ago and it’s still working great without any errors
Thank you for the excellent video! A Western Digital Black 2TB HDD that I bought back in 2013 started to fail a few weeks ago. When it started to fail, the drive began making seeking noises at regular 2-3 second intervals without the drive being used, but I didn't really pay attention to this until the drive slowed down considerably, reading and writing at only 1-10 mb/sec when it normally is ~150 mb/sec. A few days later I started getting a SMART warning at bootup advising me to backup my data from that drive immediately due to imminent drive failure. I immediately began copying the data to another drive. That makes it about 10 years of life which is not too bad, I think.
Hi Chris- In addition to carving data into stone, I submit Punched Cards, Punched Tape and Microfiche as a means of storing data long-term.
I still have data preserved on this media going on 40 years. Oh yes and printout although the paper is yellowing.😄
Cool.
Yeah ink on paper fades too. Stones get eroded BTW. Nothing is perfect on this Earth.
For some reason I had it in my head that hard drives would last far longer than 3 - 7 years. That is a shockingly short amount of time! I also had no idea about the concept of bit rot. This has given me good reasons to up my backup game to ensure my data is not victim to a common failure modality. Very interesting info!
They can last longer but a lot won't. Need checksums or something similar to check data validity
They can last a lot longer under the right conditions but they're not really designed to. Heat, vibration, humidity, excessive write cycles will all shorten a drive's life.
I have hard drives from the early 1990s that work just fine. Kept only for nostalgia since they're not very practical for backups. A lot of those old drives had a fairly easy life. Before the Internet it was common for some home PCs to be only powered on for a few hours a week. Also most PCs back then ran Windows 3.1 (or just plain DOS), which didn't thrash the hard disk like the later versions of Windows.
@@zoomosis Thrash the hard disk? Pardon my ignorance. I’m just curious about what that even means.
@@easternshore8367 Modern operating systems like Windows (and OS/2 before it), Linux, MacOS, etc will typically use the hard drive (or SSD) as secondary memory when the physical memory (RAM) is exhausted. This is called memory paging.
On PCs with hard drives, excessive paging was colloquially known as "thrashing" where the hard disk activity would skyrocket due to memory starvation, and the PC would slow to a crawl.
This can still happen on a modern PC with an SSD, but most PCs now have more memory than they need, so excessive paging is less common.
mine did i do have a 20 year old laptop it is a beko laptop with its 40 GB hdd still working after 20 years@@ironfist7789
I never knew about the hard drive could last around 5 to 7 years but my hard drive is now 10+ years old and it still running fast as usual
It's a miracle that your drive is still running for 2 decades. Probably my Hard drive is well done made
I have HPE 15k disks which have got in excess of 125,000 hours on them still spinning strong 24/7/365 serving up databases with constant reads and writes. Replaced 1 disk with a brand new WD equivelent which only lasted 3 years before failing, at which point i learned my lesson and replaced the WD with a refurbished HPE which is still going some 6 years later. HP make some very reliable disks indeed, I swear by them.
Feels like a video from 2009 and its awesome to be honest.
Only 6k subscribers left until we reach the 1 million mark!!! 🥺
That's gonna be a magical moment
I think when the next video will be released there will be 1m :)
I like "we" 😊
I've been keeping an eye on that counter - 1M party inbound! :D
Stonks!
Another fine video. I didn't know that SSD or SD drives are constantly rewriting data to keep it current. You live and learn. It would be fascinating to know what they do when they are seemingly doing nothing.
It's always interesting seeing colour photos degrade over the years. Most will be gone forever unfortunately in a few decades. It's worth a visit to the Discovery Museum in Newcastle as there is an absolutely perfect carbon ink image which will never degrade, I believe it's a Joseph Swan creation.
SSDs are overrated. The best SSDs are the oldest ones. But HDD is always improving their angular density. I think HDD will make a comeback once the hype is finished and especially when they realise data rots slowly on flash memory
@@addydiesel6627overrated, no. They are rated quite well.
SSDs are excellent for those that want fast storage. They do the job very well. Too well. Games, photos, videos load instantly. I can load a enormous library of photos, videos in one go.
Don't dismiss ssds just because they can 'fail'.
Modern-ish (past late 2000s or newer) hard drives also keep moving data and defragmenting when idle. Before NTFS you had to run manual defragmenter periodically and crash could have scrambled everything. @@addydiesel6627 HDDs are so slow, you get ridiculous load times on systems. They're still good for storage just put system files and games on SSD, and back up documents from them.
SSD for main storage, HDD for backups, the latter has more reliable recovery options for data that you don't want to lose. You can buy a half terabyte HDD for about $10 these days, then wait a few years when 1TB+ HDDs are more affordable
I have 9 "WD Red" 3Gb & 6Tb harddrives running in a Synology unit 24/7 for almost 11 years without giving a glitch (they 've been migrated twice to more recent units without any issues). To avoid possible bit rot issues, the arrays here are scrubbed data every 3 months, this is important to keep the data "in shape".
I learned also from experience that drives spinning 24/7 have a better chance to survive over the long term, than drives that constantly start/stop only when you need it (for "power saving" e.g.). So it's interesting to know & keep in consideration for extending the longevity of the drives (and your data).
I am an IT manager and there are several (tens of) computers I have to service. 3 years old SATA SSD disks started to work very slow and I had to replace one of them as the computer became unusable. I managed to clone the system to the new disk, and then I tested the old disk using HDDScan. Noo bad sectors, but access time
My vinyl records still reproduce quite well after 60 years
But still they can get hacked 😅
I scratched the only LP that I ever owned and moved to CDs. Waited a long time for CDs to become recordable only the find the whole hifi thing to self-implode instead (DAT vs miniDisc). Like everyone else I moved to digital (and a high-end audio interface with studio monitors).
You made this Sinclair nerd smile with the microdrive cameo :-) Suggestion for a follow up video: show how ZFS and BTRFS automatically recover and self-heal from bad sectors.
Same here!!
really tickled my beanbag too
ZFS for the win. I've been using TrueNAS with ZFS for 10+ years and it hasn't lost a single file! 😁
ZFS doesn't really recover from bad sectors, it just handles them in a more elegant way than ext4, xfs, etc. Sometimes, you can carry on using an array with thousands of bad sectors for months, and sometimes the array becomes non-mountable a few days later. If you've got bad sectors you need to replace the drive ASAP, ZFS or not.
+1
I have several hhds with over 40k hours on them. They all still work great.
One thing that radically affects the life of physical hard drives is how often the drive is physically moved. Hard Drives in laptops are going to fail much more frequently than those of servers or large home computers that aren't moved. These days hard drives are used for bulk storage more than actually running the Operating System itself. If you have an OS that only spins up the drive when its actually needed, the physical hard drive will likely last longer, but it does increase the risk of motor failure. If the hard drive cannot spin up, the drive won't work...
BTW... You do a top notch job of explaining all this.
That's why all laptops now use NVMe drives. No moving parts, fast, and takes up far less space than hard drives or SATA solid state drives.
How a complicate info presented in a very simple and easy to understand way, without all the unnecessary drama. Thanks a lot for sharing the video
7:36 Worth noting that while an LTO 9 tape is about 100 bucks, an LTO 9 drive will set you back 5 thousand. If you're and enterprise or a datacenter, it makes sense, but not for ordinary mortals.
Good stuff. A town near me, 15 or so years ago, used magnetic media to store audio and video files for a time capsule to be opened in 100 years, they laughed at me when I asked, “ how are they going to read it?” What do I know? lol
They have a shelf life of can't remember..30 years ? Think i read list of different media storage types and life expectancy for 17 years ago😅
But still better than most ppl 😂 there's so many ppl that can't remember from head to toe 😂
:)
One recommendation is to include a player in the time capsule, and preferably with written instructions on how to use it.
Or, if you time capsule is a spacecraft, emboss your instructions pictorially on a metal jacket as a cover for your media.
I have a Toshiba 3TB HDD running about 10 years (bought in March 2014), uptime is 26k hours.
I think I might consider replacing it before something happens......
I started using Blu-Ray M-Discs for backuping the most important things like photos or important documents, ofcourse it's just another extra backup, not only one. I did some tests and it looks like it could really survive everything, only problem is how to read it in the future, but I have 3 BD drives, so at least for some time, I can read that.
With HDD and SSD, both is pretty unsafe if you don't backup it on more places, but HDD will mostly give you some notice that it will fail soon, so you may backup at least some data in time, while SSD can just die instantly. So SSD for backups when it's only one place where you have it - definitely no.
The worst thing for backups are flash drives and DVDs, even CD is much more reliable than DVD. On other hand even basic blu-ray discs are pretty reliable, I can recommend them.
SD card may use the same technology as USB falsh drives, but SD cards are much more reliable because it doesn't have USB controller inside, which is what mostly fails in USB drives, not that memory itself or there are problems with bad contacts in USB connector. When you have such problem with SD card, you just put it into different reader. From my experiences, SD cards are pretty reliable, but I don't recommend micro SD, these are dying pretty often.
About oldschool floppy disks, from my experiences, problem is mostly floppy drive which can be bad, diskettes itself mostly work if it's not damaged or you don't put it close to strong magnets. When you have some old data on them and modern USB floppy drive can't read it, don't panic, there is like 90+% chance that problem is bad quality modern floppy drive, not disks. Your only option is to find old computer with ok floppy drive and read it there. But even when it can actually read and writte, these newer USB floppy drives are really really slow. No, it was not THAT slow back in the day when people were using floppy disks, just try it in some old computer and you will see.
I've used local backup systems for years and have come to find them unreliable. Switched to Backblaze years ago. It just works. Never failed. I never have to worry about redundancy, reliability, etc. It's a rare case of a service about which I struggle to come up with something negative to say.
Keep your data "live", with automatic backups. And most importantly: check your backups!!!
This is possibly one of the best videos on TH-cam when it comes to informational content. As someone who loves media preservation, this was a very insightful video.
Lenovo Thinkpad W520 SSD at 12 years and still going strong! I really should back up soon... :D Just glad to be on the right side of the bell curve... Thanks for the clear, uncluttered info.
Excellent Reminder to rotate storage of important data. I use 8 HDD. In preparing data for taxes as my CPA is in another state about 1,000 miles from me l rotate between drives daily. Excellent reminder. It takes only seconds between drives. Thanks for sharing. Mr. M. In Santa Cruz, California U.S.A.
*I have invested heavily in over 40 units of various SSD and Hard drives and back up a CLONE weekly and label it and store them in a sealed bag in the refrigerator since you need a STEADY temperature environment and your home refrigerator is the cheapest steady temp. environment .*
SSDs are basically all I use. Fast R/W speeds, a relatively long lifespan and the recent decrease in price make them my favorite storage option currently. Of course M-disk and putting HDDs in a Raid configuration have there own benefits. But for everyday computing, SSDs are the way to go.
Good luck recovering data from an SSD when it fails. HDD's are much easier to recover data from.
@@andynonimuss6298ah yes but you failed to consider that I have no data worth saving. 🥲
Where are you getting these cheap SSDs from? All of our suppliers have raised their prices substantially in 2024. We even had several calls from different supplier reps weeks before the hike warning us of the impending price hike and to buy buy buy, and quick. Sure enough we had to raise our prices as our margins dropped to zero.
That was a great run down of info,... Thank you Chris.
I think a future storage medium should be EggNog, as that always seems to last forever when given it at Christmas.....crikey... take care, 'till next time!
Thanks for this and you support.
This a great video, thank you for the information and how you explained it. I came here because recently my WD Blue from 10 years ago (and heavily extremely abused) died and, since I could tell it was failing because of how it sounded I only lost little data, I backed up on time most of it.
I have two Crucial 1TB SATA's in my Unraid setup as cache drives. Both purchased and installed at the same time in my overgrown NAS rig. Barely a year in one of the SATA's with no warning went cold ☠. Well darn. Replaced it with another 1TB SATA (Teamgroup) and all is well and it's been at least 3 years in and the other Crucial is still working fine. Some things fail prematurely and the one that came of the line right behind it may outlive us. There's always and outlier in the batch.
Good video with lots of detail. 💿
@Send.an.sms.to.claim.._97 How about jumping into the River Thames.... head first.
Greetings from Brazil!
I love your videos! Simple, direct and with plenty of illustrations and super detailed explanations! Congratulations on the channel and always stay strong!
Brazilian hugs!
Very useful, professional, and clear. Thank you. I work for more than 30 years now in my own little shop of computer repairs, and I can confirm, from my own experience, all you said here is based in reality.
I will conclude, tough, we are still in the "Stone Age" of data preservation, and our tech do not evolved much in the last 30 -50 years, in this field. Like you said, we have much hope in the DNA data storing tech, yet we are light years away from this technology.
Sad, we are a dumb race, with self-destruction instincts, spending 95% + of our resources and time, in creating weapons and perpetuating wars, to benefit a few dozens of "golden elites", interested in their own selfishness, and only that, than in our advances as human race.
Data storage is fundamental for any advanced civilization, but we are not there, and I highly doubt we will ever be, with the current leadership and current tribal mentality.... We are closer to fusion than to genetic storage systems, yet we are a lot closer to self-destruction and/or absolute totalitarian regimes...
Thank you for your efforts to share with us these very useful data, Sir.
In Ukraine we spent money on museums schools and hospitals instead of weapons, now all of that is destroyed by the guys who spent on weapons. So yes, human race is silly because we don't spend ENOUGH on weapons, as orks will inevitably invade and their goal is only destruction.
I have some good brand CDs I burnt more than 20 years ago, and they are still readable now. Crappy brand record able CDs though didn't last more than 2 years!
The first CD I ever burned was in 1998, a backup of all my programs, drivers, Windows updates and other stuff I had downloaded because 56k was miserably slow (and every time someone called or picked up the phone it disconnected). Printed out a nice label for it and everything and made a new "edition" at least once a year with updated stuff. I still have that very first CD-R and it works fine. :D
fired up a 22 year old HDD a while back via usb adapter & it started up & worked flawlessly!
(was stored in a cardboard box)
Many thanks for a great video. I have taken to powering up my various SSDs every so often using a USB hub and hope I'm doing the right thing to preserve the data
Simply "giving them juice" is not enough. The best thing to do is to check the read-speeds - just read the complete data area (check if the speeds are degrading by the way) and then let them idle for a while. However, the best and safest option is to perform a "force-refresh" if you notice the speeds degrading over time (there are many programs/tools that offer this option).
@@Wlad1 Thanks for your reply to my comment, Wlad1. I have six external SSDs that I have been "giving juice to" and hoped that would be sufficient. I shall look into your suggestions, so thank you again for your advice
W/ our tech now, storage media should really last much much longer
ALL of my HDDs lasted longer than 10 years. But i had one SATA III SSD from some German company which died after 2 years.
SCSI ZIPs have no problem to survive 20+ years...I can read them all out in my sampler.
SCSI was always my favorite interface. My LVD Seagate Cheetah drives were bullet proof.
This video was amazing and highly informative. I feel I learnt more by watching this video rather than anywhere else in the whole internet. Thank you for this great gift
I just pulled out a 1tb WD external drive from 23 years ago. Still works and I pulled all the data off it.
Cool -- and amazing! :) You have a good drive there.
I think most people focus on a drive's capacity and speed and rarely consider its endurance, which in my case using M.2 SSD is TBW.
The potentially 1000 year M disc is impressive, especially the 100 &128GB BDXL, sad those never caught on mainstream.
Historical documents like the US constitution have survived somewhat long term although I have seen it and it is pretty faded, even though it is kept in an ideal conditions state for preservation sake. Carving into stone, like the Egyptians, wins then. Also, God carving the ten commandments (Tablets of Stone). But even that method over long periods of time can fade due to weather conditions, and fragile to break if dropped (or thrown)
Right nothing lasts forever. Unless you have enough resources to make multiple backups with storage rooms with ideal preservation conditions to store them longterm. But annoyingly have to rewrite the data every once in a while to refresh the data.
NICE VERY INTERESTING, I LIKE THE FORMAT .
Finally! The combo video I’ve been waiting for and I’m glad you mentioned the SSD being unpowered and losing data aspect. Many erroneously talk about SSDs like they’re invincible until they hit the TBW.
I did not expect optical media to win but that does make sense why manufacturers are still selling it now.
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Welcome aboard!
I just lost use of 2 Elements external Hard drives after about 2 & 3 years use. I wouldn't recommend the product. Luckily I was able to transfer all of my 6TB's of files to a Toshiba & Passport. It was a long process of transfer back to PC and onto the Toshiba & Passport but thankfully, nothing was lost other than the 2 external Hard drives. Time will tell how good the Toshiba is. I will chalk this up to a 300 dollar mistake. I would recommend anyone who starts to experience issues with them be sure to not unplug the HD or shutdown your computer and get on transferring files as soon as possible.
I've seen several instances now in which a company backed their data to tape boasting its longevity, retrieved the tape decades later, but then realized they didn't keep a drive around to actually read it.
During the development of Grim Fandango Remastered, they were lucky to stumble across a tape drive in a storage unit. So far, the folks who found the ReBoot master tapes haven't been as lucky finding a D1 tape deck.
Keeping your important data in multiple drives also a not a bad idea.