Reseeding Availability Group databases

Reseed is an option to restore Availability Group (AG) databases. If a secondary database gets out of synchronization with the primary database in an AG, you can reseed the secondary database.

Before you begin

About this task

You cannot perform reseed operation on primary databases.

You cannot perform a reseed operation if the replica database is removed from the availability group. When the replica is removed, the reseed operation fails.

While running the reseed operation on SQL Availability Group database, you should not trigger log backups on the replica databases of that availability group database. If you trigger log backups during reseed operation, the reseed operation fails with The mirror database, "database_name" has insufficient transaction log data to preserve the log backup chain of the principal database error message.


  1. In the left navigation pane, click Resources, and then select the appropriate plug-in from the list.
  2. In the Resources page, select Database from the View list.
  3. Select secondary AG database from the list.
  4. Click Reseed.
  5. Monitor the operation progress by clicking Monitor > Jobs.