Some of my backup to disk folders intermittently go offline and the following event IDs are logged in the application log.
Any idea what is causing this?

 

System configuration:

Windows Server 2003 Std Edition

Backup Exec 11d

Live Updates: Service Pack 4,  hotfixes 62,63,64 & 65

 

 

Event ID 33808

An error occurred while processing a B2D command.

 Changer: LockAndRefreshChangerConfig() Unable to Lock Changer.cfg (T:\Burton DIFF BU\Changer.cfg). Error=32

 

Event ID 33808

An error occurred while processing a B2D command.

 Changer: CreateChangerConfig() Unable to Create Changer.cfg (T:\Burton DIFF BU\Changer.cfg). Error=80

 

Event ID 58057

Backup Exec Alert: Media Error

(Server: "IMAGING") The Backup-to-Disk device is offline.

 

This is typically caused by the folder becoming inaccessible due to it being deleted, renamed, or unshared. It may also be caused by a disk full condition. The folder state has been set to offline. Please attend to this condition. Additional detail may be found in the Event Viewer - Application Log.

 

Event ID 33808

An error occurred while processing a B2D command.

 Changer: LockAndRefreshChangerConfig() Delayed Locking Changer.cfg (T:\Burton DIFF BU\Changer.cfg). Error=32