An archive database backup is a backup file of the archive and security databases. You must restore the archive backup into an archive database before you can use it. You can optionally back up the archive database as a step when preparing a site for a Metasys system upgrade. You can also create and move a backup to another computer with SCT. See Backing up an Archive Database.
When you upgrade SCT, an archive database backup is automatically created and stored in the following directory:
C:\Program Data\Johnson Controls\MetasysIII\Database Files\PreUpgrade Archives