Your post got pushed down the list and I did not see until now. Apologies for the delay.
It is a little difficult to determine what happened to the DXi v1000 without logs, but it looks like it may have suffered a power loss and when it was rebooted needed a check disk to run to verify the file system. Can you verify if power was lost to the DXi?
In cases like this a support contract would be need so Quantum support could log into the DXI v1000. We would run the check disk and attempt to get the DXi operational again. We would also be able to access the DXi v1000 and pull logs as needed to determine how to get the DXi operational again.