SGMON Debug log reports following information :
PVLSVR: [5816] Backup Exec was unable to initialize and communicate with the device \\.\Tape0 (Access is denied.). Click the link
below for more information on how to diagnose the problem.
PVLSVR: [5816] Backup Exec was unable to initialize and communicate with the device \\.\Tape1 (Access is denied.). Click the link
below for more information on how to diagnose the problem.
The following GPO setting is set to "Enabled" (which denies access):
Computer Configuration\Administrative Templates\System\Removable Storage Access\Tape Drives: Deny Write Access
Change the GPO setting to "Disable" (which allows write access) or "Not Defined" and restart Backup Exec server.
Computer Configuration\Administrative Templates\System\Removable Storage Access\Tape Drives: Deny Write Access