Automatic reseed, or AutoReseed for short, enables you to quickly restore database redundancy after a disk failure. When a disk fails, the database copy stored on that particular disk is copied from the active database copy to a spare disk on the same server.

In the case of multiple database copies being stored on the failed disk, they can all be automatically reseeded on a spare disk. This minimizes the amount of work an administrator needs to do if a disk is broken and needs to be replaced, or if the database needs to be reseeded. However, be aware of the fact that the administrator needs to replace the broken disk(s).

We will walk you through a simple setup using one mailbox database that uses this feature.