Database mirroring requires transaction log backup regardless
I was setting up mirroring at a client site today and started as I usually do by backing up the primary database and restoring it at the mirror. It would not start mirroring and complained that I didn’t have the latest transaction log backup: the mirror database …., has insufficient transaction log data to preserve the log backup chain of the principal database.
Somewhere along the way, the need to have a transaction log backup has crept in. So, to start mirroring, I just now backup the primary database to a file, backup the transaction log to the same file and then restore both on the mirror server. Then it starts fine.
2008-08-18