Here are the errors that I am seeing int the app log
The disk 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.
-- The job failed with the following error: A communications failure has occurred.
An error occurred while processing a B2D command.
Changer: LockAndRefreshChangerConfig() Unable to Lock Changer.cfg (\\vacodd1\backup\production\exch01\full\Changer.cfg). Error=5
I have had the data domain looked at by EMC and it is functioning fine. The servers that are being backed up are all windows 2008 boxes running on a VMware cluster..This has been an ongoing issue.