I just got one of my drives disabled and am not sure if I can safely remove it and then try adding it again to the array to enable it again?

 

I attached diagnostics and smart report, there seems to be nothing suspicious. I also checked cables and connections already.

 

smart-20250429-1742.zip diagnostics-20250429-1739.zip

Emulated disk1 is mounted. Should be OK to rebuild to the same disk after you fix what caused it to become disabled. Since you rebooted before getting those diagnostics they don't tell us anything about what happened before.

yes, unforunately I wasn't at home when this happened so I don't really know what caused it.

But what are the steps now? Just select 'no device' then clear it, re-add it and bring the array back online?

12 minutes ago, trurl said:

fix what caused it to become disabled

Check connections, SATA and power, both ends, including splitters.

 

Just now, Marv said:

then clear it

Not sure where you get that idea.

 

https://docs.unraid.net/unraid-os/manual/storage-management/#rebuilding-a-drive-onto-itself

 

 

On 4/29/2025 at 5:01 PM, Marv said:

Just select 'no device' then clear it, re-add it and bring the array back online?

• Stop array
• Unassign drive
• Start array (to forget previous assignment)
• Stop array
• Assign drive
• Start array to start rebuild

No clear/preclear needed as the rebuild process overwrites every sector on the drive anyway.   Having said that some people might like to run a preclear cycle to act as a stress test of the drive before adding it back for the rebuild.