Checks if database and the backups are on separate backup devices. If they are on the same backup device, and the device ...

Checks if database and the backups are on separate backup devices. If they are on the same backup device, and the device that contains the database fails, your backups will be unavailable. Also, putting the data and backups on separate devices optimizes the I/O performance for both the production use of the database and writing the backups.