No *tmp.log found for database ‘Microsoft Exchange Server\ Microsoft Information Store\SERVERNAME\Mailbox Database’
You have circular logging enabled on Exchange 2010.
- Please disable “Cicrular Logging” for all the storage groups.
- Restart the “Microsoft Exchange Information Store” Service twice. (Or restart the server )
- Run a full backup for the Exchange Backup set twice.
If you are performing a seed operation, the destination backup set folder for this backup set (located under files/ on the destination) should be BLANK, otherwise the software will attempt to generate deltas against the previous incorrect backup versions.