If the location for an archive system is contained in the location table (when MARENUCP is started), MARENUCP reserves all tapes requested from the pool of tapes with the attributes HOME-LOCATION=<archivsystem_location>, FREE-LOCATION= <archivsystem_location>, TEMP-LOCATION=<archivsystem_location>.
If several archive systems are used, the location which is first in the location table is taken as the standard location (e.g. “ROBOLOC1”).
In a mixed mode, with manually operated cartridge devices and/or with several archive systems, the MAREN administrator must specify via a reservation file (see section “Location management via a reservation file”) or in the computer center MAREN exit routine MARENEX1 (see "Reserve-request exit MARENEX1"), whether another storage location should be used instead of the default.
If a MAREN exit routine is used, the following points should be borne in mind:
In the catalog entry passed to the data center exit routine, the default location “ROBOLOC1” is preset for the HOMELOC catalog entry field.
If a tape from the manual archive is to be used, a different location must be entered (e.g. “CENTRAL”).
If a tape from a different archive system is to be used, the name of its storage location must be used (e.g. “VTLSLOC”).
After the reservation, the archive system is requested to mount the tape.