February 24, 20188 yr Hi all, I have 3 SSDs, 2 of which were in the cache pool, one of which was unassigned. Intending to remove the unassigned drive, I shutdown, removed a drive and rebooted the server. Now the cache pool is not present on boot, and all the SSDs are showing up as unassigned drives. What can I do? Can I tell which drives were in the unraid pool? Can I reform the pool? Did I just screw myself and now have data loss?
February 24, 20188 yr Author Bit more info: UnRAID is recognising that one of the SSDs has a BTFS filesystem on it. So that's good I guess? Only one, which doesn't make sense to me as there was 2 drives in the cache pool. Even if I could pull the data off both drives and recreate the pool, I would be happy. Any links/advice appreciated.
February 24, 20188 yr Author Update! Adding all three drives back (one via usb dock) is allowing the pool to mount through unassigned devices. Not sure why a drive that I literally never used needs to be in there, but oh well. Next step, have it be a cache pool.
February 24, 20188 yr Author Okay so can I add these drives to the cache without wiping them? Surely that's possible.
February 24, 20188 yr Author Okay, current plan of action. Copy all the files from the cache to the array, add the drives to cache, and if they need to be formatted, no biggie.
February 25, 20188 yr Author Hopefully, but the backup is almost finished, so may as well be safe rather than sorry.
February 25, 20188 yr Author Alright! Cache drives added, and everything is back up. Cache drives were not formatted when added back, so the backup though reassuring was not useless. Hopefully if some other eejit like me panics, this thread can put their minds at ease.
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