Date: Thu, 29 Aug 2019 00:45:47 +0200 From: Albert Shih <Albert.Shih@obspm.fr> To: freebsd-questions@freebsd.org Subject: Verry serious problem with ZFS & 12.0 Message-ID: <20190828224547.GA1557@io.chezmoi.fr>
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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. -- Albert SHIH DIO bātiment 15 Observatoire de Paris Heure local/Local time: Thu 29 Aug 2019 12:26:55 AM CEST
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