Re: ZFS problems since recently ?

[Alexander Leidinger]

Am 2023-12-31 19:34, schrieb Kurt Jaeger:

I already have

vfs.zfs.dmu_offset_next_sync=0

which is supposed to disable block-cloning.

The sysctl for block cloning is vfs.zfs.bclone_enabled.
To check if a pool has made use of block cloning:
    zpool get all poolname | grep bclone

Bye,
Alexander.

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It isn't. This one is supposed to fix an issue which is unrelated to block cloning (but can be amplified by block cloning). This issue is fixed since some weeks, your Dec 23 build should not need it (when the issues happens, you have files with zero as parts of the data instead of the real data, and only if you copy files at the same time as those files are modified, and then only if you happen to get the timing right).

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