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Tell me why I shouldn't use btrfs (lemmy.zip)

submitted 1 day ago by [email protected] to c/[email protected]

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About a year ago I switched to ZFS for Proxmox so that I wouldn't be running technology preview.

Btrfs gave me no issues for years and I even replaced a dying disk with no issues. I use raid 1 for my Proxmox machines. Anyway I moved to ZFS and it has been a less that ideal experience. The separate kernel modules mean that I can't downgrade the kernel plus the performance on my hardware is abysmal. I get only like 50-100mb/s vs the several hundred I would get with btrfs.

Any reason I shouldn't go back to btrfs? There seems to be a community fear of btrfs eating data or having unexplainable errors. That is sad to hear as btrfs has had lots of time to mature in the last 8 years. I would never have considered it 5-6 years ago but now it seems like a solid choice.

Anyone else pondering or using btrfs? It seems like a solid choice.

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[–] [email protected] 1 points 10 hours ago (2 children)

Yeah maybe my machines are cursed

[–] [email protected] 1 points 6 hours ago (1 children)

I doubt that. Some options:

bad memory
failing drives
silent CPU faults
poor power delivery

The list is endless. Maybe BTRFS is more tolerant of the problems you're facing, but that doesn't mean the problems are specific to ZFS. I recommend doing a bit of testing to see if everything looks fine on the HW side of things (memtest, smart tests, etc).

[–] [email protected] 1 points 3 hours ago

I set the Arc cache to 4GB and it is working better now

[–] [email protected] 1 points 10 hours ago (1 children)

That is totally possible. I spent a month changing boards and CPUs to fix a curse on my main, unrelated to storage. In case you're curious.

[–] [email protected] 0 points 9 hours ago (1 children)

@avidamoeba @possiblylinux127 Does your ZFS not print on Tuesdays? https://bugs.launchpad.net/ubuntu/+source/cupsys/+bug/255161/

[–] [email protected] 1 points 9 hours ago

I feel like this one flew right over my head. 🥹