Volume failed to import

[wblock]

gpart show only shows partitioning, it does not have anything to do with how much space is used.

Try df -h instead.

I suspect that data was copied to a mountpoint when a volume was not mounted.

 

[joebus]

okay did that command, there is only one entry for Server_Pool and is 88Kb,

 

[Robert Trevellyan]

there is only one entry for Server_Pool and is 88Kb

It shows 88K capacity, 88K used, 0B available, 100% full. That's consistent with your zfs list screenshot. That same screenshot also shows a child dataset, 895G capacity, 895G used, 0B free. Whichever way you slice it, that pool is 100% full, which makes it very difficult to manipulate.

You might get somewhere using the CLI to detach it, then to import it read-only. Then you can try copying the contents elsewhere before destroying the pool.