Warning: The system is shutting down.
Error: Job0000000B - Failed to read shadow copy of volume C:, the system error is [The system cannot find the file specified. (2)].
Error: Job00000044 - Failed to read shadow copy of volume D:, the system error is [The device is not ready. (21)].
Information: Job0000000B - Deleting snapshot ...
The backup fails as the system is shutting down; even the warning message shows that 'The system is shutting down'.
1)Check the Windows event logs and verify if the machine was rebooted or shut down while the backup was running.
2)Also check if there is any scheduled reboot. If yes, reschedule it to occur at a different time so that it does not cause the backups to fail.
One of the events seen in the Windows System Event Log. There could be different type of information seen depending upon the type of the reboot or shut down.
EventID ::: 1074
Event Log Type ::: Information
Event Source ::: USER32
The process winlogon.exe has initiated the restart of computer XXXXXXXX on
behalf of user NT AUTHORITY\SYSTEM for the following reason: No title for
this reason could be found
Reason Code: 0x840000ff
Shutdown Type: restart