I'm currently migrating a large (~40gb) database to a new environment. The new environment is a HA/mirrored set up with primary, mirror and witness nodes.
I'm backing up the database in the old environment, restoring to primary & mirror, and turning on mirroring. During this time the old environment is still active, and data is changing. When we are ready to go live with the new environment I plan to take another transaction log from the old environment and restore that to the new primary server. Is that possible? Will this be successfully synchronised to the mirror?