Verry serious problem with ZFS & 12.0
Albert.Shih at obspm.fr
Mon Sep 9 11:45:57 UTC 2019
Le 29/08/2019 à 10:37:28+0200, Julien Cigar a écrit
> On Thu, Aug 29, 2019 at 12:45:47AM +0200, Albert Shih wrote:
> > Hi
> > After update 4 servers from 11.2 to 12.0 without any problem, wait few
> > weeks to see if everything work well, and it did. I just upgrade my mail
> > server.
> > During the upgrade I also upgrade all firmware for the hardware.
> > And now I got a very serious issue with my server.
> > Configuration :
> > Dell PowerEdge R740Xd with H730P, 192 Go Ram, 2 SAS mechanical disk for the system,
> > 2 SSD (in a zfs pool) for the mail index (cyrus), and 28 mechanical disk
> > (in a second zfs pool) for the mailbox.
> > The problem:
> > After running few days the zfs pool with the 2 SSD are not responding.
> > The system are perfectly working.
> > The second zpool (mechanical disk) are perfectly working.
> > I got zero log, zero message in the console or in dmesg.
> > The arc_size are correct, it's around 70-75 %.
> > The moment the zfs pool become not responding are random, not related to
> > any activity (human or cron).
> > The only option I pass for the kernel related to ZFS are vfs.zfs.min_auto_ashift=12 and
> > vfs.zfs.prefetch_disable=1. Without the second one the system no
> > responding (under 11.2) when the server send (through zfs send) the data to another
> > server.
> > After the first problem I make a zfs upgrade, thinking maybe that's the
> > problem so I'm not sure I can downgrade to 11.2 (and 11.2 are EOL)
> > In your opinion :
> > 1/ What should I do to try to find the problem ?
> > 2/ Do you think that's a hardware/firmware problem or FreeBSD problem,
> > the point is the second zpool are working perfectly so I'm thinking at
> > some firmware/hardware/compatibility problem.
> > Regards.
> looks like PR 236480
> see https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=236480
So I can confirm, with this patch the server work fine without any hang or
Observatoire de Paris
xmpp: jas at obspm.fr
Heure local/Local time:
Mon 09 Sep 2019 01:44:42 PM CEST
More information about the freebsd-questions