No video
Logical Volume Management: LVM
Рет қаралды 4,623
Күн бұрынThis time, I am going to show you how to use LVM for a Linear file system which can be extended, have space added to it and also how to build a RAID 5 using LVM. Note: Red Hat has removed the documentation from their LVM manuals for RHEL 9, and I think that is because of data loss issues with RAID on LVM.
Cover Image by Soulful Pizza - Pexels
Support me on Patreon: / djware
Follow me:
Twitter @djware55
Facebook: / don.ware.7758
Discord: / discord
Gitlab: gitlab.com/djw...
"Brightly Fancy" Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 4.0 License
creativecommons...
"Militaire Electronic" Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 4.0 License
creativecommons...
Werq by Kevin MacLeod
Link: incompetech.fi...
License: filmmusic.io/s...
Industrial Cinematic by Kevin MacLeod
Link: incompetech.fi...
License: filmmusic.io/s...
Music Used in this video
"NonStop" Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
#lvm #raid5 #linux
@cleightthejw2202 2 жыл бұрын
@DJ I don't know if you actually changed anything for your audio but this video and the last one you did are sounding great. If you did change something then thank you very much for addressing that. It makes a huge difference on my end.
@CyberGizmo 2 жыл бұрын
I did, I spent the better part of the weekend, changing out the audio chain, putting in an older microphone I had in storage a Shure SM7b and putting my 500 series lunchbox (its a pro audio device) into the chain, neither had been used since 2012. I was amazed it didnt blow a capacitor :)
@chrisbitus1328 2 жыл бұрын
Very informative. I used to think that LVM is better than a flat file system because of the name. But if it gets confused by redundant information, I guess a normal system is better.
@justgivemethetruth Жыл бұрын
For sure for an individual. For large scale data warehouses they could not exist without being able to coglomerate disks together. Every time I used some sort of striping, mirroring, logical volume, or even dual boot on my system I always had problems with it and ended up eventually with a mess. Even NAS for a home user is kind of a waste. Because they eventually go obsolete and get EOLed.
@iberianful 17 күн бұрын
Great Video, Mister DJ. 😀
@abobader 2 жыл бұрын
I never trusted LVM as a raid, always on hardware raid till used zfs, always thought lvm as easy to extended partition, well done DJ for this info video.
@CyberGizmo 2 жыл бұрын
Agree with you on ZFS completely. Somedays I think RAID should really mean Retrieval and Immediate Dataloss.
@abobader 2 жыл бұрын
@@CyberGizmo True indeed, btw, I really like the wallpapers :)
@smko_ Жыл бұрын
thank you for making this video, it's quite helpful. but please in the future videos make the terminal full screen and the font size a little bigger
@eugenesmirnov252 Жыл бұрын
It's fun (as always I admit) A couple things deserves to be touched 1 sequential concatenation, is not the only way to do it. Otherwise you may gain some speed. 2 LVM-cache is cool thing to do. ( I actually has played with it for couple of years in prod )
@sotecluxan4221 2 жыл бұрын
Educational!
@skipinkoreaable 2 жыл бұрын
Thank you for this video.
@CyberGizmo 2 жыл бұрын
Welcome, Craig
@guilherme5094 2 жыл бұрын
👍!
@esra_erimez 2 жыл бұрын
Can a pv be an iSCSI initiator? If so, would one be able to create a mirrored lv over the network?
@CyberGizmo 2 жыл бұрын
I won't say no. Just that I have never done it that way. I have done it but I did it by creating the LV first on the ISCSI Target server. Then define the ISCSI target from the LV. Which is how I see most of the tutorials do it as well. The reason I did it that way is I always put LVM against the real disk.
@eugenesmirnov252 Жыл бұрын
@@CyberGizmo lvcreate -T obvious is useful.
@eugenesmirnov252 Жыл бұрын
You may do what you wont, but I'd consider ceph or gluster nowaday.
@justgivemethetruth Жыл бұрын
What happens if you lose a drive or multiple drives in a logical volume? Is the system smart enough to have some record in the kernel or device files that knows that and where the data is located and can access data on the drives that are still working? I'm thinking probably not, but it seems like that should be possible if file data is not spread across drives.
@eugenesmirnov252 Жыл бұрын
Depends on your redundancy level. R5 = minus 1 disk w/o data loss.
@justgivemethetruth Жыл бұрын
I thought fdisk was the DOS formatting/partitioning command.
@CyberGizmo Жыл бұрын
It originated in UNIX way before DOS
@justgivemethetruth Жыл бұрын
@@CyberGizmo I always used mkfs and format?
@darrellglenn4113 2 жыл бұрын
❣️ ƤＲＯ𝓂Ｏ𝕤ᗰ