If a Mailbox Archiving Task is configured then the event ID 2256 will be logged:
Event ID: 2256
Description:
The Archiving task '
V-437-2256
If a Journal Task is configured then the event ID 2258 will be logged:
Event ID: 2258
Description:
The Journal Task '
V-437-2258
If a Public Folder Task is configured then the event ID 2949 will be logged:
Event ID: 2949
Description:
The Public Folder Task '
V-437-2949
A Dtrace of the relevant task (ArchiveTask, JournalTask or PublicFolderTask) may report the following error:
FindExchServerDn returning error 0x8007203A
In certain Active Directory environments containing Windows 2000 PDC emulators, the Enterprise Vault archiving task may attempt to communicate to these servers as if they were a Global Catalog (GC) server for the domain. These communications will fail, causing the task to stop and report the error.
Manually enter a GC in the Vault Administration Console:
1. Expand Enterprise Vault | Directory On.. | SiteName | Targets | Exchange | Properties of the Domain
2. Check the box to Use specific Global Catalog Server and enter a known good GC using the Fully Qualified Domain Name
3. Restart all EV services and attempt another restore