# 1 Extended offline Completed without error 00% 19. Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
SMART Self-test log structure revision number 1 Vendor Specific SMART Attributes with Thresholds: Weirdly, smartctl does not show anything amiss in the smart monitoring data (similar output for both disks, just showing one): $ sudo smartctl /dev/disk/by-id/wwn-0x5000cca26aeb9280 -a Wwn-0x5000cca26aeb9280 DEGRADED 0 0 18 too many errors (repairing)
Wwn-0x5000cca26af27d8b DEGRADED 0 0 15 too many errors (repairing)
Using 'zpool clear' or replace the device with 'zpool replace'. Applications are unaffected.Īction: Determine if the device needs to be replaced, and clear the errors Status: One or more devices has experienced an unrecoverable error. So I'm running a scrub, and zfs has found a few more checksum errors: pool: masterpool This is not ideal, because these identifiers are not stable, so after looking a bit online, I re-exported the pool, and ran zpool import -d /dev/disk/by-id masterpool.īut now, zpool is telling me that there are checksum errors: NAME STATE READ WRITE CKSUM The output of zpool status for masterpool looked something like this (this is from memory): NAME STATE READ WRITE CKSUMĪta-ST8000VN0022-2EL112_ZA17FZXF ONLINE 0 0 0Īta-ST8000VN0022-2EL112_ZA17H5D3 ONLINE 0 0 0 Also, the pool with the single lone WD Red was fine and was referencing its disk by-id. After running zfs import, it reimported it, but using sdX references for most of the disks (the WD Reds, but not the Seagates). When I rebooted after updating to Ubuntu 20.04, the second pool (masterpool) was gone. The pools are scrubbed regularly, and the last scrub was a couple of weeks old and didn't show any errors. The pools were created using /dev/disk/by-id references so as to be stable across restarts. The server had 2 zpools, one composed of a single WD Red 10 TB (downloadpool), and the other composed of 8 WD Red 10TB and 2 Seagate IronWolf 8TB arranged in 5x 2 mirrors (masterpool). I upgraded my server (SuperMicro X11-SSM-F, LSI SAS 9211-8i) from Ubuntu 18.04 to 20.04.
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