this post was submitted on 24 Aug 2024
381 points (99.0% liked)

Linux

48683 readers
413 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

Related Communities

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

founded 5 years ago
MODERATORS
 

There's been some Friday night kernel drama on the Linux kernel mailing list... Linus Torvalds has expressed regrets for merging the Bcachefs file-system and an ensuing back-and-forth between the file-system maintainer.

you are viewing a single comment's thread
view the rest of the comments
[–] pimeys@lemmy.nauk.io 1 points 3 months ago (1 children)

But scrub is not fsck. It just goes through the checksums and corrects if needed. That's why you need ECC ram so the checksums are always correct. If you get any other issues with the fs, like a power off when syncing a raidz2, there is a chance of an error that scrub cannot fix. Fsck does many other things to fix a filesystem...

So basically a typical zfs installation is with UPS, and I would avoid using it on my laptop just because it kind of needs ECC ram and you should always unmount it cleanly.

This is the spot where bcachefs comes into place. It will implement whatever we love about zfs, but also be kind of feasible for mobile devices. And its fsck is pretty good already, it even gets online checks in 6.11.

Don't get me wrong, my NAS has and will have zfs because it just works and I don't usually need to touch it. The NAS sits next to UPS...

[–] possiblylinux127@lemmy.zip 1 points 3 months ago (1 children)

I have never had an issue with ZFS as long as there is a redundant copy. A bad ram might cause an issue but that's never happened to me. I did have a bad motherboard that corrupted data on write. ZFS threw its hands up but there wasn't any unfixable corruption

[–] pimeys@lemmy.nauk.io 1 points 3 months ago

Me neither, but the risk is there and well documented.

The point was, ZFS is not great as your normal laptop/workstation filesystem. It kind of requires a certain setup, can be slow in certain kinds of workflows, expects disks of same size and is never available immediately for the latest kernel version. Nowadays you actually can add more disks to a pool, but for a very long time you needed to build a new one. Adding a larger disk to a pool will still not resize it, untill all the disks are replaced.

It shines with steady and stable raid arrays, which are designed to a certain size and never touched after they are built. I would never use it in my workstation, and this is the point where bcachefs gets interesting.