August 28, 20214 yr Community Expert Cache disk dropped offline: Aug 27 22:40:20 Tower kernel: ata9: COMRESET failed (errno=-16) Aug 27 22:40:20 Tower kernel: ata9: reset failed, giving up Aug 27 22:40:20 Tower kernel: ata9.00: disabled Check/replace cables but also check SMART once it comes back online.
August 28, 20214 yr Author My cache drive pretty much stayed fine without error. No thumbs down. Everytime after reboot, it works back again. I believe my diagnostics have the cache drive details, WDC_WD20EFRX-68EUZN0_WD-WMC4M1780430 - 2 TB (sdi). Any test I can run before checking the cable?
August 28, 20214 yr Community Expert 35 minutes ago, jang430 said: My cache drive pretty much stayed fine without error. No thumbs down. That's a known limitation with pools, see here for better pool monitoring.
August 28, 20214 yr Author I got this result. I'll shut it down and check cables asap. I'll run this as well "btrfs dev stats -z /mnt/cache" Thank you!
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