When performing a full server backup of an Exchange 2013 server using Windows Server Backup the backup job may complete with warnings and display a message in the backup status.
Backup succeeded but some components backed up were inconsistent in the snapshot. The application this component belongs to might not function properly after this backup is used for recovery.
Event ID 2112 is also logged in the Application event log of the Exchange server:
Log Name: Application
Date: 11/25/2013 3:30:54 PM
Event ID: 2112
Task Category: Exchange VSS Writer
The Microsoft Exchange Replication service VSS Writer instance 00054860-333b-42f4-b5d6-8006f2aa23a8 failed with error code 80070015 when preparing for a backup of database ‘Mailbox Database 3’.
If you attempt to recover the Exchange 2013 server from the backup the Exchange application is not available to restore in Windows Server Backup.