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Booted unRAID with an SSD unplugged - Cache pool now missing, not mounting


b0gg3r

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Posted

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?

Posted

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.

Posted

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.

Posted

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.

Posted

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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