Allan Jude Interview with Wendell - ZFS Talk & More
ฝัง
- เผยแพร่เมื่อ 8 เม.ย. 2017
- FreeBSD Mastery Advanced ZFS:
www.zfsbook.com
Allan Jude's Podcast:
www.bsdnow.tv
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Intro and Outro Music By: Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
creativecommons.org/licenses/b... - วิทยาศาสตร์และเทคโนโลยี
This is phenomenal, Allan and Wendell need to do more shows (please have a regular thing)
Both Allan and Wendell have a way of describing complex processes that isn't boring or elitist. Well done and great chat!
Ok, you win, Hey Jude
I didn't expect that I would be watching a conversation about file systems at half three min the morning in my holiday but that's what I'm doing. Good job.
And yet even more surprising, a conversation about filesystems that is (I hope) _engaging_
Everything becomes more interesting when the people talking actually care about the stuff they are talking about while also enjoying it. This conversation was so much fun to listen to while also being highly informational. A big thank you and greetings from Germany.
"Now I can fit 60GiB of Arc into a system with only 32GiB of Ram, I'm winning!"
Killed me.
I "thumb up" this video before I even watch it! +1 for Allan Jude!
Ah sweet, I read that ZFS book a while back :)
I never would've thought I'd see Allan on here. Defiantly a nice surprise. The more interviews/talks/long format videos the better.
woot Allan!!!
Emerald13
Yeah I like several Jupiter Broadcasting shows. Sometimes I just download their podcasts. Wendell should do more projects with them. :)
Truly unbelieveable to see Lord Wendell and The Teacher Allan Jude toghether.
Awesome content - pitched at just the right level to be engaging and with enough detail to be practical. Love to see more content like this!
This is exactly the kind of content I look forward to most. I have not yet used ZFS in any project, but this was both informative for the future and entertaining right now. Thank you.
AWESOME. Downloading this for the bus ride to work tomorrow. :D Can't wait to hear this!
Yay for long form interviews!
So many things have changed since this talk, but a lot of the information is still very useful.
Great to see Allan still holding up that flag
thanks to both of you
The interview I have been waiting for!
Soooo yeahhh more of these please! Totally enjoyed that
Wow, I NEVER would have thought to see Allan and Wendell in the same video. First with Bryan and now Allan. This is great!
By the way, I've been using ZFS for my NAS servers and it's been great.
Realy cool interview - learned quite a few new things about ZFS. I have been using it for a few years now on my NAS. Would love more vidoes like this in the future! Good job!
I am surprised Windall and LAS/JB hasnt combined with projects before this , awesome , my two fav linux channels
ZedFSmasterace! So good to see Allan round these parts!
James Bos
I'm australian... I call it "zee eff ess" because I always figured... America.
Guys, thank you for this great birthday present. And now make this kind of talk a regular one, please!
Ahh, I love this channel. It's so relaxing.
More of this! Totally awesome setup with a good level of depth. Gave me total flashbacks of my zfs-days. Made me wanna go straight back to zfs :).
I have been using ZFS on Ubuntu server for a few years now and I love it. Currently up to 60Tb of usable space.
I want MOAR of this kind of content! Love to just sit back an geek out a little bit on some great topics.
wendell! i still love watching logan but you tickle that part of my brain that got tickled by the tek!!
Thanks Wendell, that was a awesome interview with Allan.
Never expected this.. glad it happened!
This has been one of the most interesting videos I've seen on TH-cam hands down.
I have bought both ZFS books...can't wait to start building my FINAL storage solution.
Two of my all time favorites together at last!
Great interview mate. Allan comes across as a fantastic affable chap. More of this content style please!!
Fantastic content, Wendell, keep it up!
I miss Allan on techsnap wish I cared more about bsdnow
I watched a couple of episodes with the new hosts then stopped. The two new guys are annoying and uninteresting to watch (or listen to). Allan WAS TECHSnap. It died after Allan left, but Chris won't admit it and let it go.
to be fair, i like the new and old techsnap. I still watch it :)
When did Allan leave techsnap? i guess I'm behind..
nathan holbrook, Allan's last episode was 300. The latest episode is 313.
Dan is ok, Wes is like bleh. It is ok but it just so much more bland.
Thanks for making this video, I really enjoyed it.
Have been running FreeNAS for a number of years now and can highly recommend zfs as a file system and of course the books mentioned.
I appreciate the box of lyons tea sitting on your shelf!
It's so weird to see Allan as guest. FreeBSD master race! :)
Great interview, thanks
Two really smart guys talking about really cool stuff. Nice work.
Really enjoyed it.
Great interview!
AMAZING!
Thanks!!
Awesome quality content
amazing!!! keep it up. love the content!
I love content like this. I'd love to see more of these types of conversations on various open source related projects.
Allan is a cool dude. Don't know why but I love hearing about ZFS (and using it).
Welcome Allan
love this type of content it is relevant to most of your followers as we all have unraid or freenas backing up all of our own personal files and memories. i want to go back to zfs just wish i could pass threw my graphics card to vms so i could tinker more. thankfully I have 2 systems one for main storage and another as a backup.so i am thinking switching the backup to freenas again with just headless vms or docker
I really enjoyed this video. I guess it's time for me to build that NAS that I've put off for years.
For bonus points run FreeNas inside a VM on ESXI. Working great for me (Xeon E3-1230, 32GB ecc, 6x3tb RaidZ2. ibm m1015)
OMG!!! Alan and Wendell..... too much knowlege for me!..... so cool to see Alan on Level1..... (BTW, i miss the old techsnap, im not so board with the new guys, i miss the chris/alan format)
This guy is such a nerd!! And it's contagious! :D great video!
Woah can't wait to watch this. In the meantime THUMBSUP
Haven't watched the video yet, but I don't care, because ZFS! WOOOOOOOOOOOO!
yay, go Allan!!!! **Luv Rouge**
OMG let's buy the book
god i'd love to watch a weekly allan/wendell show :D
In 2021 I use OpenZFS 2.0 on all systems; on my Ryzen 3 2200G; on my i5-2520M laptop and on my 2003 Pentium 4 with my old IDE HDDs.
I use Ubuntu 21.04 for the 64-bits systems and FreeBSD 13.0 for the Pentium 32-bits system.
Nice interview. :)
I'm fascinated
Due Dos?
I am down for any and all ZFS talk.
This guy knows a lot about compression.
As someone who had no idea what ZFS was, this was very interesting! I'm pretty busy at the moment, so I don't think I'll try using it yet (as the license isn't compatible with the GPL), but definitely in the future!
You need to get this guy back. Seriously interesting.
part or me thinks they should collapse all of this onto the main channel for maximum growth. great video I loved it. made me even more excited about ZFS
Ryan Gilbert
I like having them separated so I know what sort of content to expect. Also, combining them would mean people not interested in both would get feed "spam" and may unsubscribe.
considering youtube algorithm stuff, it would be bad for them, since not all people interested in this thing.
Haha,not 'interested' ,spam sock 'plant some seeds in a pot'warch it grow from a-z & dont use Alphabet, (company mouse trap,Moa zoo?)Yatter yak yada nag nit neg non nort.
I would love to hear an update on this given all of the changes in the ZFS world as of late
Does ZFS have it's own web browser and office suite yet? No I'm just kidding I enjoyed the video I would like more of these.
- What OS are you running?
- Systemd and ZFS
@@YanDoroshenko interesting enough i just bought a truenas just to run nextcloud tought about running in in linux but.... zfs its zfs :) seems very cool waiting to arrive hope it performs as i hope
I love hearing Allan talk, but when he goes into the really deep technical details of ZFS my mouth opens up and my eyes glaze over. "Okay, so all those things make my job easier right? Okay cool I'll use it."
This was a really cool interview. I wish BTRFS would implement LZ4 for exactly the reasons mentioned in this video.
lol! RAMAdmin, that was a good one.
Great talk. Anymore of these coming?
Great stuff. I do run BTRFS on my desktop but Alan doesn't know where I live :). More in depth interviews would be awesome.
Very good video. Cleared a fair bit up for me... Could we get a followup doing some ZFS myth busting? For example, I've heard you need ECC RAM and a good UPS to prevent data loss, but I'm skeptical of both.
Also it'd be cool to have; some in depth videos on the features you guys mentioned, how to use them, pros and cons, etc...
Yeah I have the book. Even got a talk on my channel by Michael W Lucas, the co author.
The only issues I have with ZFS is the lack of expandable RAID5, some awkwardness when handling differently sized disks and lacklustre performance vs XFS.
Witnaaay yeah I have the same issue. Unfortunately I don't think that will change, as ZFS is really for enterprise storage. Where no one is trying to mismatch hard drives into to one array.
my homie Allan
Ok, ok, I will give ZFS a try when I get a new machine.
ALLAN CHANGE THE TETRIS if you do another video on L1. For old times sake?
I FUCKING LOVE ALAN!
Can you please do a video about disk shelves and how to use them with zfs?
GoboLinux has one of the most interesting file systems, would love to see a video on it :)
Woah can't wait to watch this. In the meantime THUMBSUP
i only commented to bring them a higher CPM and so i copped someone else's comment shamelessly lol
Maybe zfs conciders nas revamp\backups too be cardied out in seperate docks or alternative arrays?Yunno,seperate from machine it 'lives in'other than routime maintance obviose 'ease of use' no mess device angle, but development changes too SFP via network brocade or rmulex etc for raid and mirror comparisons can swap out so you are able too combine 'other types of arrays'eventually determine which is best for main machin,your uses,etc?
You know what these guys have in common?
Tetris
@Wendell Nice show, thanks . Do you use zfsonlinux or bsd? If zfsonlinux, which distribution; debian, ununtu...etc? I'm currently using centos 7 and it's unstable. I'd appreciate any help.
I use zfs at home!
Hi! Thanks for the video :)
I have a quick and newbie question. Which is better? to run zfs on freebsd or on linux? Is zfs on linux stable for production enviroments?
Thank you in advance
I really start to love zfs, can you tell me how to learn working with it and how to run zfs on my NAS? any blog or site address?
It'd be great if you could do a chat with Chris Fisher as well!
Awesome video.
Regarding software R/W request VS recordsize matching, is there any alignement issues that has to be taken care of or is ZFS also handling this on its own ?
Pierre B If you're asking about 512 vs 4k sector sizes that is handled by the ashift parameter at pool creation time
recordsize controls the maximum block size that ZFS will apply within a filesystem. ZFS will by default use the largest blocks it is allowed to contain a file. So for example a 912k file will consist of 7x128k + 16k tail. If the tail gets appended to, the block will grow as well until it reaches 128k, at which point a new block will be started. Any application read, regardless how small, even if only a single byte, will need to read at least one full block. Similarly, writes need to rewrite the full block, even if only a single byte was updated. This normally isn't an issue for sequential reads/writes, as those tend to be very large, consisting of many hundreds or thousands of blocks' worth of data. However, if your application does lots of random small block reads/writes (e.g. databases do this), then you will want to tune the recordsize to the native access unit size of your application. If for example your database uses tables with 16k pages (MySQL InnoDB uses this by default), then set your recordsize=16k to avoid the read-modify-write penalty.
And why is Alan on the Linux channel? FreeBSD!!
I just built my first NAS a week ago on a Skylake build with FreeNAS Corral. I used Wendell's FreeNAS tutorials which are great, but they are several years old now and do not directly pertain to Corral. Is Level1 planning an updated couple of tutorials? Maybe one that's construct NAS build/ install FreeNAS; another that goes over how to install and optimize some common plugins and functions (plex, snapshots, etc.) It looks like jails are gone in Corral, what's the best way to use an SSD to increase performance? Just a cache associated with the main volume?
so i started this comment off feeling pretty tight focused, but i've started rambling. either way i feel like the info i gave is fairly useful so i've just left it. feel free to ask me for any clarification on anything i've said. i also totes get it if you've found your answers elsewhere in the last 2 months.
the freeNAS help docs on the freeNAS website are still fine. the current stable longterm version is 9.10, with 11 having just come out too (which uses 9 and 10's UIs), and wendell's videos were about.. 8, i think? either way, when i set mine up almost 2 years ago, there was already a whole bunch wendell had to do in the video that the installer just took care of. but the help docs correctly reflected what was handled for me, what the options would be to customise, etc. videos are a useful jumping off point for understanding concepts but you should really never use a tutorial video that's that old tbh.
10 and 11 with the new ui have never been easier to create the vdev and pool and everything in your first time, giving you more visuals than ever. you can add a read cache or a write cache (or both! though if they live on the same disk your performance will be lower) at that time, or later. however it's generally recommended to try just seeing how the built in management of the ram caches does you - for me my network is saturated without any slowdowns, except sometimes when i'm copying large files to *and* from simultaneously. and going from 16 to 32GB of ram might be a cheaper and easier upgrade than setting up SSD caches to improve that stat.
because, you see, zfs can not only read data from the disks at, sort of but not quite really, the aggregate speed of all your disks (within your cpu's limits). it will preemptively cache data to the ram, like the whole rest of the file, even if you're just streaming it over the network (viewing from within media player, say) and only technically requesting the parts from the front. then, it's all loaded into ram, the heads can park again, and pausing, rewinding, etc, would be at the speed of the ram cache. so long as the file can fit into the ram of course. writes are also buffered through ram, so if the write is smaller than your ram, it will also be at the speed of ram (or well, your network speed, but that's the max you could ever get on that network anyway)
What about performance? How does it compare?
Is ZFS a valid option for laptops especially if there is one one HDD and maybe an SSD? I mean is there any benefit for a single-disk machine?
everything thefenglord said but also - if you do have just one disk, just use it in single disk mode, with zfs but not raidz. i saw a reddit post once where someone had made their drive be 6 partitions so they could do a 6 "disk" raidz2 array.... they had godawful access times and head thrashing through the roof.
there's also datasets, which are great just because resizing "partitions" is super useful. (though i think lvm can kinda do that now too? not tried myself tho)
snapshots are great because they inherently encode what is different about themselves, so they're really easy to sync over to a backup server (or even just copying a snapshot over to a usb hard drive, really) and keep, like, a history too.
de-doop sounds like a new hipster music genre
hmm useful for some
So sad it never came to apple, Larry Ellison in theory said "I don't do business with my best friend Steve jobs" potential lawsuits often stop good technology reaching people. Let's hope APFS is anywhere near as potentially useful.
hi wendell,what do you think about tape drives