Linux

52913 readers

965 users here now

From Wikipedia, the free encyclopedia

Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

Rules

Posts must be relevant to operating systems running the Linux kernel. GNU/Linux or otherwise.
No misinformation
No NSFW content
No hate speech, bigotry, etc

Related Communities

Community icon by Alpár-Etele Méder, licensed under CC BY 3.0

founded 5 years ago

MODERATORS

[email protected]

Attempting to use bcachefs (kevincox.ca)

submitted 2 years ago by [email protected] to c/[email protected]

9 comments fedilink hide all child comments

top 9 comments

sorted by: hot top controversial new old

[–] [email protected] 3 points 2 years ago

I keep being tempted by the flexibility of the mirror-layouts of btrfs and bcachefs, I have so many old disks that are smaller than my main disks but still a useful amount of space. But ZFS is just so mature and reliable, and the newer contenders seem to still fight with such serious bugs... it's very hard to convince myself to jump over.

The ZFS ecosystem also has some really mature snapshot-based backup system that both snapshot the local disk and can do send/recv to copy to backup disks locally or remotely... and clean up old snapshots. So I'd be signing up to replace that as well.

[–] [email protected] 1 points 2 years ago

Interesting read on bcachefs. Thanks for that. I have been keeping an eye on it for a while now but didn't dare to try it out.

[–] DevoidWisdom 1 points 2 years ago

Well that's not reassuring, but I do wonder how prevalent data lose is with bcachefs. It has all the features I want but have been holding off due to not wanting to run a different kernel, or add complexity to my system.

[–] Dachsmen 1 points 2 years ago (2 children)

Interesting read. My understanding is that BTRFS has had long standing issues with it's parity raid configurations (I.e. Raid5/6). Recently, kernel version 6.2 seems to have added more fixes. I'll stick to the "wait and see" approach for the time being, as Raid1 is sufficient for my home server.

Other than the Raid5/6 issue, I don't know of any other issues with BTRFS losing data. If there are some, I'd love to know.

[–] [email protected] 5 points 2 years ago (2 children)

I had my first case of corruption a few days ago. It was super minor and only for one file. I don't really know how it happened, but it was mid-bittorrent download. My best guess was that it might have been from a bad shutdown but I simply deleted the file and it was fine.

I am really waiting for RAID 5 support, but I don't think that's going to get fixed until they get that new stripe tree feature in.

[–] [email protected] 1 points 2 years ago (1 children)

I don’t really know how it happened

Better hope it was cosmic radiation and not an early indicator of failing hardware.

[–] [email protected] 1 points 2 years ago* (last edited 2 years ago)

Yeah I am worried that it's my ram. I've definitely had bad RAM give me some bad scrubs before. Never defrag with bad RAM. I learned that the hard way.

[–] Dachsmen 1 points 2 years ago

Reminds me of a time I ended up getting some corruption in some cache file for firefox. It was after I did a number of forced power offs. I'm not sure if I should blame such corruption on the filesysten.

[–] [email protected] 1 points 2 years ago

I think the upcoming on-disk format changes are going to fix most of the RAID5/6 issues.

https://www.phoronix.com/news/Btrfs-Extent-Tree-v2-Next