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this post was submitted on 13 Apr 2024
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Thanks for that! which made me read https://en.wikipedia.org/wiki/Ext3#ext4 Maybe high time for myself to learn more about ZFS.
I love ZFS but support for it on Ubuntu seems haphazard. It works fine for non-root drives.
I've tried running it as my root partition and just gave up after it fucked up my bpool dataset too many times.
Dis you use the ZFS setup built into the installer?
Yup. It booted fine but after a few reboots, bpool somehow got corrupted and refused to boot. It happened repeatedly after several reinstalls.
ZFS hits memory hard and sometimes can bring out latent deficiencies in that hardware. on non-optimal hardware its a bit of a hardware torture test in its own right.
having said that, EXT4 and XFS are wonderful unless you need zfs/btrfs.
Always run 3-4 passes of Memtest86+ on any newly acquired hardware/RAM modules.
Yeah, the current implementation from the installer never got beyond the experimental stage when it was first introduced. I saw there's a new "guided setup" in the 24.04 release notes. No idea what it entails yet. I think I've also seen a page for setting it up for / in OpenZFS'es docs. I might try it at some point.
Same here lol, just read through ext{2..4} as well as Btrfs and Bcachefs (and B Trees of course). What a wonderful unplanned deep dive.
Bcachefs sounds awesome
ZFS is really nice. I started experimenting with it when it was being introduced to FreeBSD, around 2007-2008, but only truly started using it last year, for two NASes (on Linux).
It's complex for a filesystem, but considering all it can do, that's not surprising.
ZFS is boss. I'm already using it for storage. Need to learn how to use it for
/.Not recommended for single-disk root partitions. This is a mistake I've made myself. Recovery tools are non-existant on ZFS so non-parity setups are inherently risky. If you have root setup on at least raidz1 with at least 2 disks you are fine.
Personally I wouldn't consider recovery as an option at all because it could easily be unavailable because the SSD failed. Instead, I tend to add a mirror drive and/or keep frequent backups where that's not possible. So from that perspective ZFS is equivalent to Ext4, which I currently use. I'd prefer ZFS over it for it's data verification, snapshotting and datasets features.
I've successfully recovered data from ext4 on a broken drive on one occasion. I agree it would have been better to have backups so lesson learned I suppose. Still if I'd been on ZFS root with no mirror I'd have been even more SOL