I'm running unRAID Server Plus v6.4.1   I was copying files to the array. (It contains 7 disks (xfs encrypted) + 1 parity).   The system hard locked - I couldn't ping it and couldn't type / login on the console. Had to power down.   Powered back on, and tried to start the array. It started running a parity check, but I noticed that Disk 5 was showing as 'Unmountable: No file system', so I stopped the parity check, and stopped the array.    Then I brought i