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You say that you choose ZFS if you don't want to worry about data loss. My experience is the opposite of yours. The only time I experienced filesystem corruption (other than hardware failure) was when I upgraded to Ubuntu 21.10 on a ZFS installation. Ubuntu 21.10 released with a known bug in the ZFS implementation that caused filesystem corruption. I was disappointed to say the least.

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That sounds like an Ubuntu problem more than a ZFS problem, no?

Very happy Ubuntu/ZFS user here, but we use only the LTS versions of Ubuntu.

Ubuntu didn't write the ZFS implementation.

The bug was introduced by Ubuntu in their own patch to ZFS code, which is why it only happened in very specific Ubuntu kernel package and nowhere else

If you release software with a known bug....

Ambiguous whether the bug was known at the time of release by Ubuntu. However, either way, it would have been released by ZFS authors first.

That's absolutely incorrect. The data-loss bug was created by Ubuntu developers when they developed a bad patch for a less-severe upstream OpenZFS issue.

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