Miroslav Lachman wrote on 2019/05/09 13:36:
Dimitry Andric wrote on 2019/05/09 13:02:
On 9 May 2019, at 10:32, Miroslav Lachman <000.f...@quip.cz> wrote:
[...]
Disks are OK, monitored by smartmontools. There is nothing odd, just
the long long scrubs. This machine was started with 4x 1TB (now 4x
4TB) and scrub was slow with 1TB disks too. This machine - HP ML110
G8) was my first machine with ZFS. If I remember it well it was
FreeBSD 7.0, now running 11.2. Scrub was / is always about one week.
(I tried some sysctl tuning without much gain)
Unfortunately https://svnweb.freebsd.org/changeset/base/339034, which
greatly speeds up scrubs and resilvers, was not in 11.2 (since it was
cut at r334458).
If you could update to a more recent snapshot, or try the upcoming 11.3
prereleases, you will hopefully see much shorter scrub times.
Thank you. I will try 11-STABLE / 11.3-PRERELEASE soon and let you know
about the difference.
Little bit late because I run scrub once per 60 days. Now on FreeBSD
11.3-RELEASE-p3 scrub takes 2 days and 10 hours instead of 1 week.
This is a great improvement!
Kind regards
Miroslav Lachman
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