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.

1 point

For my jbod array, I use ext4 on gpt partitions. Fast efficient mature.

For anything else I use ext4 on lvm thinpools.

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4 points

That doesn’t do error detection and correction nor does it have proper snapshots.

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1 point
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There is error detection, crc checks and lvm does snapshots and offline deduplication

However I run sha256 checks offline and PAR files for forward error correction

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0 points

btrfs raid subsystem hasn’t been fixed and is still buggy, and does weird shit on scrubs. But fill your boots, it’s your data.

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8 points

Didn’t have any btrfs problems yet, infact cow saved me a few times on my desktop.

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2 points

Can you elaborate for the curious among us?

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4 points

btrfs + timeshift saved me multiple times, when updates broke random stuff.

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1 point

I have research to do, I see.

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16 points

btrfs has been the default file system for Fedora Workstation since Fedora 33 so not much reason to not use it.

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16 points

Btrfs came default with my new Synology, where I have it in Synology’s raid config (similar to raid 1 I think) and I haven’t had any problems.

I don’t recommend the btrfs drivers for windows 10. I had a drive using this and it would often become unreachable under load, but this is more a Windows problem than a problem with btrfs

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