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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.

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Which filesystem should I use for stable storage? (lemm.ee)

submitted 1 year ago* (last edited 1 year ago) by mimichuu_@lemm.ee to c/linux@lemmy.ml

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Hello everyone. I'm going to build a new PC soon and I'm trying to maximize its reliability all I can. I'm using Debian Bookworm. I have a 1TB M2 SSD to boot on and a 4TB SATA SSD for storage. My goal is for the computer to last at least 10 years. It's for personal use and work, playing games, making games, programming, drawing, 3d modelling etc.

I've been reading on filesystems and it seems like the best ones to preserve data if anything is lost or corrupted or went through a power outage are BTRFS and ZFS. However I've also read they have stability issues, unlike Ext4. It seems like a tradeoff then?

I've read that most of BTRFS's stability issues come from trying to do RAID5/6 on it, which I'll never do. Is everything else good enough? ZFS's stability issues seem to mostly come from it having out-of-tree kernel modules, but how much of a problem is this in real-life use?

So far I've been thinking of using BTRFS for the boot drive and ZFS for the storage drive. But maybe it's better to use BTRFS for both? I'll of course keep backups but I would still like to ensure I'll have to deal with stuff breaking as little as possible.

Thank you in advance for the advice.

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[–] turdas@suppo.fi 4 points 1 year ago

The two things I would recommend to any btrfs user is enabling zstd compression and setting up automatic snapshots using snapper or Timeshift. I would personally recommend snapper if you're comfortable with command-line tools, as Timeshift only supports a very specific configuration.

zstd compression is very fast, so if you have a reasonably new CPU you will notice no overhead from it, making it effectively just free extra disk space.

Snapshots require a little bit of reading to understand, particularly because you will want a very specific subvolume layout to sensibly organize them, and distro installation wizards rarely give you such a layout except on distros that support snapshots out of the box, like OpenSUSE.

The Arch wiki page on btrfs is amazingly good, as is their page on snapper if you want to set up snapshots.