After backing up SQL Server databases using the SQL Server Plug-in, you can restore databases directly to a SQL Server instance, or restore databases to flat files. See Restore databases directly to SQL Server or Restore SQL Server databases to flat files.
After backing up SQL Server databases using the Image Plug-in, you can restore database files from the safeset. See Restore SQL Server database files or objects from Image backups.
When restoring a SQL Server database in an Always On Availability Group, you must always restore the database to the primary replica. See Restore databases in AlwaysOn Availability Groups.