November 16, 20187 yr After rebooting my system, i all of a sudden got disk 4 missing. I have changed power and sata cables and still persists. Tried mounting with UD and get the following in the logs: wrong fs type, bad option, bad superblock on /dev/sdc1, missing codepage or helper program, or other error. Nov 16 18:43:34 Tower unassigned.devices: Partition 'WDC_WD40EFRX-68N32N0_WD-WCC7K1RAS42A' could not be mounted... I did have a FS issue with my cache, so i formatted that and fixed it...... Logs also attached Thanks tower-diagnostics-20181116-1843.zip
November 16, 20187 yr Community Expert Disk isn't missing, it's disabled, diags are after rebooting so we can't see why it got disabled, but SMART looks fine, you can rebuild on top of the old disk, might be a good idea to replace/swap cables before doing it just to rule them out if it happens again.
November 16, 20187 yr Author Thanks @johnnie.black I already changed cables etc, prior to posting Took a shot before you posted and re added exiting drive to slot and started array...Drive is now rebuilding Cheers
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