My TrueNAS instance (TrueNAS-12.0-U4) runs as a VM under VMware ESXi, with the SAS controller and disks passed through for direct access. Every morning at around 0430, I get an alert that one disk is faulted. A reboot of the VM resilvers a tiny amoutn and the fault indication is removed (see below). Note that the disks do not power cycle because the host server stays up.
The host server is powered through a UPS so I would assume that the power is smoothed which in my mind would rule out a power glitch. I also find it unlikely that there’s an actual fault with the disks, since are only just over a year old - they are 14TB Seagate IronWolfs – and this behaviour has only recently evidenced itself even though they’ve been powered up continuously since installation. And it wouldn't be a daily occurrence.
Any thoughts as to what may be causing this?
Thank you.
The host server is powered through a UPS so I would assume that the power is smoothed which in my mind would rule out a power glitch. I also find it unlikely that there’s an actual fault with the disks, since are only just over a year old - they are 14TB Seagate IronWolfs – and this behaviour has only recently evidenced itself even though they’ve been powered up continuously since installation. And it wouldn't be a daily occurrence.
Any thoughts as to what may be causing this?
Thank you.
Code:
pool: tank state: ONLINE status: One or more devices has experienced an unrecoverable error. An attempt was made to correct the error. Applications are unaffected. action: Determine if the device needs to be replaced, and clear the errors using 'zpool clear' or replace the device with 'zpool replace'. see: https://openzfs.github.io/openzfs-docs/msg/ZFS-8000-9P scan: resilvered 51.5M in 00:00:04 with 0 errors on Wed Sep 8 08:36:20 2021 config: NAME STATE READ WRITE CKSUM tank ONLINE 0 0 0 raidz1-0 ONLINE 0 0 0 gptid/a5b2b36a-a99d-11ea-8b4f-000c29f4b07c ONLINE 0 0 0 gptid/a5d5643f-a99d-11ea-8b4f-000c29f4b07c ONLINE 0 0 0 gptid/a5e3f313-a99d-11ea-8b4f-000c29f4b07c ONLINE 0 0 1 errors: No known data errors