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

submitted 1 month 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] 2 points 4 weeks ago

You've been downvoted, but I've seen a fair share of ZFS implementations confirm your assessment.

E.g. "Don't use ZFS if you care about performance, especially on SSD" is a fairly common refrain in response to anyone asking about how to get the best performance out of their solution.