After retrieving a generic LiteSpeed backup script generated from the Backup Wizard and cloning it to backup multiple databases, running the scripts simultaneously results to backup failures on some databases in random. But if the backup scripts are executed sequentially, the backup process succeeds for all databases.
The following error can be found from the LiteSpeed logs:
Error: 11700, Msg: Create failed for virtual device: VDI_CB58942F-140A-4D75-B7D5-4C0D80BE1E05_0, Error: (x80070005).
The backup scripts are using the same value for @GUID which causes a VDI conflict during the backup process.
WORKAROUND 1:
Remove the @GUID parameter from the backup scripts. GUID parameter is not required when running backups through scripts.
WORKAROUND 2 :
Run the backup scripts sequentially.
Also refer to solutions:
SOL19142 - https://support.quest.com/SUPPORT/index?page=solution&id=SOL19142
Title: What the function of that @guid argument?
SOL35857 - https://support.quest.com/SUPPORT/index?page=solution&id=SOL35857
Title: Error: HRESULT 0x80070005 during LiteSpeed backup
