Date: Tue, 02 Jan 2024 08:28:48 +0100 From: Alexander Leidinger <Alexander@Leidinger.net> To: Kurt Jaeger <pi@freebsd.org> Cc: freebsd-current@freebsd.org Subject: Re: ZFS problems since recently ? Message-ID: <5210dd54acbaa8d7705aa4f756e21d1a@Leidinger.net> In-Reply-To: <ZZG0RdFTqfbfPwf7@fc.opsec.eu> References: <ZZG0RdFTqfbfPwf7@fc.opsec.eu>
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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.
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).
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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