If there are issues with archive jobs, you can find information in the following sources:
Enterprise Vault event log that is located in the Windows Event Viewer.
See Viewing the Enterprise Vault event log for Archiving Option events.
Backup Exec diagnostic utilities.
An Exchange Mailbox Archiving Option job may not find data to archive for the following reasons:
A File System Archiving Option job can only find data to archive if backup sets are on disk. or if the option Allow archiving from backup data that is on a tape device is selected.
Requirements for both the Exchange Mailbox Archiving Option and the File System Archiving Option