Creates a snapshot of the OpenVMS Registry database. That is,
    the system writes all cached OpenVMS Registry keys or values and
    makes a copy of the OpenVMS Registry database files.

    The OpenVMS Registry server copies database files to the location
    specified by /DESTINATION (SYS$REGISTRY by default), using the file
    extension .RSS (Registry SnapShot).  To restore the snapshot, shut
    down all applications using the Registry, shut down the Registry
    server, and copy the files to SYS$REGISTRY, renaming them with the
    .REG file extension.

                               NOTE

        When you restore the database from a snapshot, you
        lose all modifications that were made to the database
        since the last snapshot was taken.

        By default the OpenVMS Registry server creates a snapshot
        automatically every 24 hours and retains the five most
        recent snapshot files.

    This command requires the SYSPRV privilege.

    Format:

      CREATE SNAPSHOT