RAID 0, RAID 1, RAID 10 - All You Need to Know as Fast As Possible
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- เผยแพร่เมื่อ 29 มิ.ย. 2024
- RAID 0/1/10 are the simplest forms of RAID for hard drives and SSDs. This brief overview aims to give you a basic understanding of how they work
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Me 6 years later:
Still has to learn what RAID is..
LTT: Hello I am mini linus, im here to help :D
If you have a modern system you really don't need it. Remember, RAID 0 was invented way back when all there was were slow HDD. When SSDs came out a single one was many times faster than the fastest RAID HDD. Now that we have PCIe it is many times fast than that SSD and even RAID 0 SSD. Everybody wants more speed, but few user have application where they really need it. RAID 1 is certainly still valid.
@@krane15 Still need them in corporate / infrastructure side of things. Personally - probably not.
Krane
I thought the point of RAID was more about data integrity than speed. Only 1 option is speed focused, the rest are all about redundancy.
@@radicalxedward8047 Thee are many levels or RAID each with its own unique functions. Speed tends to be (at least used to be) the most sought after of those levels.
7 Years same thing. Simply didn´t need RAID till now. Thanks Linus for letting the old stuff online. I bet this video is still constantly clicked.
imagine telling this guy that some day he would have a beard
Whaaaa? He does???
@@selenabostick5844 check his latest videos on Linus tech tips
69th like
At the age of 31
having a beard for most guys has more to do with not wanting to shave, not testosterone.
I just realized RAID 10 means RAID 1+0 not actually 10 as in the Roman X
+Bloodstainer yeah, me too
+Bloodstainer It means 2 in binary form, RAID 0, RAID 1 and RAID 2
Siddharth Nair No dude.. there is a setup called raid 2. Its just that raid 2, 3 & 4 aren't used as much.
Bloodstainer Lol, sorry, this the first video I've ever seen concerning RAID
RAID 2 exists but is basically obsolete because it uses its redundancy disk as a source of ECC, which modern hard drives already have included. RAID 3 and 4 work like RAID 5 does in that they have 1 disk's worth of fault tolerance through parity, but they store all of the parity on one disk rather than distributing it across them all like RAID 5 does. This makes 3 & 4 much slower on certain read/write operations. Don't know if they're considered obsolete, but they are generally inferior to RAID 5 and are thus rarely used.
This kid's knowledgeable, professional, and very good at explaining things, he's going to go far, I wonder where he is now?
No longer CEO
@@Yellowredstone 😱No way!, REALLY?! 🙄🤦♂
@@pistol0grip0pump If you hadn't already learned, he's still owner and a big part and contributor to videos of LMG, but he hired a CEO to take care of CEO things.
@@jtadevich My dude, it was a joke 😅
@@pistol0grip0pump That's fine. The beginning of my response take care of it all then. 😄 Have a good one my dude. 😁
Thank you for that clear, concise explanation! I'm a photographer and people keep saying I need a separate RAID set up to back up my files, but no one actually explained what that was in a simple manner. This was very helpful.
What about RAID: Shadow Legends?
Underrated comment.
LOL
/madlads
i literally came to make that comment
Lol😂😂😂😂
watching this to understand the new LTT episode where they lost their data...!!
they got it back, but they lost it because the way they had their server set up, was just asking for data loss.
+Xed Addiz Lmfao sameeeeee
+Xed Addiz Dude watching the older Fast as possibles shows how terrible he was at this 3 years ago lol.
+Xed Addiz You got me xD
Linus Tech Tips.
With SSDs, it's RAED
Redundant Array of "Expensive Dies"
Still sounds the same though :P
Suraj Sharma
lol
haha honestly
it's actually independant not inexpensive. because those WD reds are expensive, and most people use ironwolf pro's
@@bradster2214 was gonna say the same thing but you overcame me
This just helped me simplify learning RAID for my CompTIA A+ certification, I needed this👌
You're the man Linus.
Keep it up.
Thanks again. Haven't had to set up a system with redundancy, but a 3 minute video was exactly what I needed. Nothing more and nothing less. 100
8 years later im still using this video to explain raid to new level 1 techs its a wonderful teaching tool
Linus, not sure how this video came up in my search que but woe it is an amazing video. Even looking back on how you produced videos you had such a passion regardless of what is going on around you; Its simple, pure and directed. The honesty shines through to this day. You have lead me to build 12 computers and all of them posted even if me and the builders were not in the clearest of heads. and yet this video stil rings true as if it were almost the ultimate PC building guide
Linus man, I gotta thank you for all your help in helping me learn about components and similar things. I'm building my very first PC (currently have an Alienware :( ) later this year, and couldn't have done it without you man!
So happy to have found this video! This was exactly what I was looking to understand. I think i'm going with a RAID 1 in my new build.
Thank you very much Linus, we have this in our exams and you helped clear it up. I was literally taking notes while you went on explaining about the RAID setups. Again, thank you very much.
OMG! Raid 10 = 1 + 0 It makes so much sense now :D
My life will never be the same again...
It's sometimes referred to as 1+0 as well.
Maybe I shouldn't say this cause I'm gona look stupid but... Dr Barnabus I couldn't work out were the ten came from. Need to lay off the pain killers me thinks...you completed my life for this evening lol thanks. :)
Or just raid one zero for my binary bros out there
gonna have to have a raid 1 system to keep my por.... i mean school documents
Hahahahahahahaha YES! I have to back up my po.... family memories quiet often but I prefer to back up most things on a NAS or portable drive, something so that if I need it urgently in another location I can have it there without the need of a desktop since I often use a laptop in different locations also. NAS/P drives are a bit more costly though whereas 1TB could be 40-50 dollars for internal, a pdrive could be 70-80... and an internal drive of 4tb is roughly 150-170, but a pdrive is roughly 180-250.
***** yes, yes it is. been working really hard on school :))
Heheh +1 to ya buddy. I store my goodies on my Synology NAS drives, easy to pick up and run for it if they come knocking.
C Porter
LOL, when do you need por...Family Memories UGENTLY in another location? LOLL, ''oh shii old lady walked in on me in the computer room, i better take this situation to the laptop and the bathroom'' LMAO. This made my day man. loll
Nighthawke70
When who comes knocking??? Why is that a worry, do you have Pre-School Documents??? haha
There's nothing better than when I get to watch a Linus video as part of my "study" for a Computer Architecture Exam :D
Thanks for the simple and quick explanation on RAID-1 vs RAID-10. Great visual illustration!
You can raid 10 2 SSDs for speed and 1 HDD for redundancy, right? Also would the SSD array be bottle necked by the HDD mirroring that array?
I think you'd need 4 drives but I would not mix SSD and HDD personally. I would make the SSDs into a RAID 0 array and then have some other backup solution to back up the SSD array to the HDD.
Just my opinion though. You may not notice a huge bottleneck but I would expect it.
I FINALLY GET RAID10!
+ingaman but why? u running a server?
+TheBigchekka No, I just never understood the concept until Linus explained it. But now that I understand it, I find it difficult to explain why I didn't understand it before.
+ingaman oh now i understand what you mean with "get" ^^ sry
I read that you finally got laid...
ingaman it isnt "10" it really is nested raid 1 and 0
RAID 0
RAID 1
RAID 10
RAID: SHADOW LEGENDS
oh god...
show that one coming
RAID: GARBAGE LEGENDS 🤣
"speaking of RAID..."
Hotel: Trivago
RAID stands for Redundant Array of *Independent* Disks. Inexpensive Disks is what it *used* to mean, but that's like really ancient history.
If you study computer science, you will find that there are many acronyms that have multiple options in terms of what each letter stands for. For some, there is not agreement amongst the experts.
Inexpensive is history, Independent is right.
And there is another mistake, it is not called RAID 10 (ten), but RAID 1-0 (one-zero). It is just written RAID 10
well if you look at how much history / legacy Cisco put into there certifications I would't take on what i'ts called that heavy as long as people know what it does and what to do when setting it up it could have the name of yellow dog or something like that as long as it does what it say on the tin and that people know how to set it up but bottomline I think it depends on who you ask and for some the name is one thing and to others another thing it's a bit like religion or something like that
all linus videos are awsome.:D
Tom Riddle: "Can you only RAID 0 the data once? For instance, isn't seven..."
Professor Slughorn: "Seven! Merlin's beard Tom! Isn't it bad enough to consider splitting one drive? To rip the data into seven pieces... This is all hypothetical, isn't it, Tom? All academic?"
Tom Riddle:
[Smiling] Of course, sir. It'll be our little secret."
I'm Taking PC Repair and understanding almost everything (becuase of ltt and ncixtt) butt RAID and im so glad you have something like this. The only reason im going to get A+ certified is because of you guys and I legimently want to thank you so much.
FINALLY!!! A VERY USEFUL INFORMATIVE INFO VID WITHOUT A LONG INTRO,SPECIAL EFFECTS AND CHATTER ABOUT NOTHING TO DO WITH TOPIC!...THANKS
Thanks for a video that's direct and clear. Solid explanation, graphic, and scope. Cheers
Buys 6 hdds and configures a raid0 setup...
Disk fails
Buys 6 HDDs and configures RAID1 setup...
All disks fail
Orders 6 10,000rpm 4tb hdds and plans to configure raid 1 setup...
...
...
Package lost in transit
JessLe- Berry lols
JessLe- Berry Buys a 4 TB SSD's
...
Eats them
Orders 6 2Tb - SATA6 hdd's...
no SATA6 on moboad
RAID: Redundant Array of "Independent" Disks
It means both...
It does mean both, the naming convention converted over to independent at some point in time, not really sure when though
Marius Tancredi Ha! Inexpensive. Lol. How come SSDs are cheap. I doubt Intel X25-E is cheap, for a gigabyte I could eat... for a full day. Even a full week if I (am dedicated) want.
thats what i thought
Originally it was "inexpensive". Now independent has been used.
Finally! Raid explained, once again awesome Linus, thank you and cheers.
Is interesting to see how much Linus and the Fast As Possible has changed over the last 3 years.
+YTN3rd right? same thought
I thought they changed the meaning of RAID a while ago from "inexpensive" to "Independent" since they don't have to be inexpensive.
They did but I like the first one best
+retrogamefox independant wouldn't be the right word because in a RAID 0 there is no independent drive, i think independant nor inexpensive is correct, but in general people would only raid drives if they are affordable otherwise they would stick with one drive and the price of SSD's is continuing to drop so I prefer inexpensive as well.
i would say independent over inexpensive as well because price points on disks change based on a number of factors and "expensive" is a very relative term to who is doing the purchasing, whereas "independent" would make far more sense with the though that you have X number of independent disks working together/in groups. depending on the raid level, not even all the disks manage the same function, just in the same grouping.
I always thought it was "interdependent disks" because they relied on each other but hey 5 years have passed. And I'm 5 years older now 😂
two errors:
1. minor mistake about raid 1: raid 1 gives you more read performance and IOPS.
2. huge mistake about raid 10: what you descried in the video (stripe between the two disks, and mirror the strips groups) is raid 0+1, or mirror of stripes. raid 10 is actually strips of mirror. it doesn't make much difference in a setup of 4 disks (since, well, you only get 2 groups and each group only get 2 members) but if you have say 6 disks, raid 0+1 will separate those disks in two raid 0 groups (3 each), and stripe between the 3 disks, whereas raid 10 will separate disks in 3 groups, each groups contain a mirrored (raid 1) disks, and data strips between groups. while you MAY loss up to half of the disks in raid 10 (vs 2 in raid 01) can still recover, your fault tolerance is really only one disk.
reliability wise , raid 10 is better than raid 01, but they are nothing compared to RAID 6..
Is RAID 6 better than RAID 10
Excelente o curso/palestra/explicação, muito profissional mesmo! Valeu... Rei, Jundiai, São Paulo, Brazil
Clear, concise short into the point, thank you, excellent refresher!
RAID stands for Redundant array of independent disks, not inexpensive :)
I have a RAID made of 4 512GB SSD drives, I would not call them inexpensive (at least in 2015)
RAID 1 + RAID 0 = RAID 10 OH i get it now! Its funny! :D
Very insightful. Thank you for the info Professor. This is good!
I really like the invite to link to it on a website lol reminds of the good old days! you guys were pushing every avenue you could I guess and I appreciate that!
Linus, before puberty.....
Doesn't RAID stand for redundant array of independent disks, not inexpensive disks?
Both are considered correct
I needed to learn what raid was, and instinctively types "Linus Raid" in youtube. 7 years old but still great information. I hope you're feeling better!
Nice work! Thank you for explaining in simple terms.
Sticking with my ultra slow 320GB single hard drive.
U upgrade yet?
U upgrade yet?
U upgrade yet?
U upgrade yet?
U upgrade yet?
Has the acronym been changed to Redundant Array of Independent Disks?
I needed this info 10 years after uploading, Thanks Young Linus
omg, this video so much better than the newer Techquickie releases. Stright to the point, only 3 minutes and the idea is fully transmitted.
could you do a raid 0 on two ssd's, and back it up all the data on a single hdd?
Wowthatsfail lel u mad breh
Yes that is the most ideal use of Raid 0. Though you will still get better performance and speeds from a M.2 SSD
2:43 Hey Vsauce Linus here
Love your videos. One minor correction: You're correct that RAID 1 gives you no increase in write performance, but it does (theoretically) give you double the read speed due to the controller reading interchangeably between the two disks. I say theoretical because I can't say for sure that all RAID controllers operate in this way or that you'd get the full double performance, but you will get faster read speeds with a mirrored setup than with a single drive.
thanks for this comment, I had rewatched the video 3 times and was still confused. As i'd thought i'd read somewhere and it also seemed logical, that if the data was stored across 2 drives, that you'd be able to read it quickker
Really good video along with proper explanation.. keep it up !!
Redundant, array, of (inexpensive) *independent*, disks
Amazing how your videos have been more professional over the time, but they are useful still. Greetings.
This is an amazing video. Exactly what I was looking for 10/10
"NCUneXt time". Are you trying to brainwash us, Linus?
I'm pretty sure Raid 10 is pronounced "Raid one zero"
That was wicked best and easiest to understand explanation!
Great video! Definitely helped me setup my new RAID server!!!
what if RAID 0 + CLOUD STORAGE? win win deal?
yeah i was gonna do that haha
Fintan 3 ssd and 1 tb ? What setup is that? Using 1 non ssd ?
***** oh I was just curious as to which purpose each served.. so the internal drive is your backup drive for making backups of the 3 striped SSDs? I'm still trying to learn how these different raids work.
No sponsor ?!
Excellent summary, thanks for posting!
Very good video and straight to the point. Love it :)
I was taught that RAID stood for Redundant Array of Independent Devices, not Inexpensive Drives...
+Alex Hawkyard The original acronym is "Inexpensive disks", but it has over time changed to "Independent disks", according to Wikipedia :)
huh, no tunnelbear?
Great Video! My Qs are..
1. When RAIDING, is it recommend to have the drive be as close in manufacturing, storage space, and type (SSD w/ SSD, or SSD w/ HD) similarity as possible?
2. If my only intention was to have the drives have two separate OS(s) (i.e. Windows and Maverick); would RAIDING still benefit my needs?
3. What is the failure rate when considering any and all factors? Drive space, total use, and drive type?
thank you
Thanks this video was just what I was looking for. I wasn't sure with RAID 1+0 if i would lose still have half the total capacity or 1/4. Now I understand with 4- 2TB drives in raid 1+0 I will have 4 GB of capacity.
So that's why you have all those hoop earings. You're not gay but smart. Its a raid setup. If you lose one or two you got backups.if you lose three tho, you're screwed and will look kinda straight with just one earing
💀
+christopher jones O fuck me... I read this, scrolled back up and realized I hadn't even noticed all his 'cranium accessories,' then I laugh way too hard and long. Such a great comment.
ajajajajajajajaja thans man
he's married and has at least one child...
What is being "married and has at least one child" supposed to mean?
it actually stands for 'redundant array of INDEPENDENT discs' and has nothing to do with the price of said discs Mr Linus sir! i am sure that everything pc-wise is inexpensive for you, but that is not the case for the most of us!
+Doc Lex You're both right. From wiki: "RAID (originally redundant array of inexpensive disks, now commonly redundant array of independent disks)"
That was fastest way that i understood RAID, you are awesome..
Great video; thanks for the rundown
2:43 lmao wtf linus xDD
Divine Gaming 2019 wtf
raid 0 = 0
raid 1 = 1
raid 10=2
Binary too strong!
Love ur old videos
Thanks for the info. Quick and easy to digest.
On a side note, @ 2:43, the host reminds me a little of Jim Carrey.
I really like this guy. I just wish he had a video that would show a step by step guide on how to set up raids
Well. This made it very easy to understand. thanks.
Great video, quick and information.
Studying for my CompTIA A+ exam and just as I'm struggling with RAID concepts Linus saves the day.
Oh Now I get it! Thanks for the lesson as fast as possible!
Very informative and short -- thanks!
Great video. I would like to see some coverage on HP C7000 blade server configuration and Virtual Connect Domains
I have read that for a raid with multiple hard drives next to each other, you should only use NAS or Enterprise hard drives as they have vibration detection. Because cheap hard disks without vibration detection are actually only intended to be alone in the PC case or individually in an external case.
Here 10 years later waiting for the annotation and link for the video on the other RAID types you mentioned.
Linus the saviour for my IT course
great source of quick info about the RAID system
7 years later: still helpful
Quick perfectly explained to the point well done..
Great explanation! Thank you!
Great explanation! Thanks!
3 years later and linus is still the best
Look how the channel grew. Its Beautiful
Techquickie you left out the fact that depending on drivers, firmware, and components used that RAID 1 does have the potential to increase data read speeds. It may (will) not be as much of a performance boost as RAID 0, but it's still possible to get more performance than a single drive. Not knocking you Linus or anyone at LMG. Working my way through all 3,015 videos (across all 3 channels). Enjoy all the vids, tuts, etc.
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For anyone interested, it will take about 122-135 days at 4 hours per day to watch EVERY video from LinusTechTips, Techquickie, and ChannelSuperFun. Days 123-135 take into account for new videos released over that time period.
Great Video Nice explanation
Dude your so good at doing these videos, your presentation is perfect.
Subed...
you're*
I am loving the succinctness of the presenter! Brava/o as the case my be. :)
My kinda learning video!
perfect explanation. Thank you
thx man its crazy how youve grown
linus you are a god. I am now an expert on raid after clicking on this video. I haven't even watched it yet, that's how good I know its going to be.cheers
This video is very helpful. This kid is going places might not here on youtube but places.