Date: Mon, 9 Sep 2019 13:45:52 +0200 From: Albert Shih <Albert.Shih@obspm.fr> To: Julien Cigar <julien@perdition.city> Cc: freebsd-questions@freebsd.org Subject: Re: Verry serious problem with ZFS & 12.0 Message-ID: <20190909114552.GD13411@io.chezmoi.fr> In-Reply-To: <20190829083727.GC38457@home.lan> References: <20190828224547.GA1557@io.chezmoi.fr> <20190829083727.GC38457@home.lan>
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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 crash. Thanks folks. Regards -- Albert SHIH Observatoire de Paris xmpp: jas@obspm.fr Heure local/Local time: Mon 09 Sep 2019 01:44:42 PM CEST
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