In ROBAR operation you should also use MAREN, the tape archiving system in BS2000. The use of MAREN is a prerequisite for ETERNUS CS.
To manage the tapes, MAREN has internal interfaces to the BS2000 components Data Management System (DMS) and the device management system (NDM). It determines free tapes that are to be overwritten on the basis of reservation times and issues its own MOUNT statements. This prevents protected data from being inadvertently overwritten.
MAREN checks access to tapes. Each time a tape request is issued, MAREN checks whether the user issuing the request is in fact allowed to access the desired tape. More detailed information on MAREN is provided in the “MAREN” manual [8].
Selecting the central MAREN system
If a BS2000 system is selected as the central MAREN system in the interface-specific ROBAR-SV configuration file (see "Interface-specific ROBAR-SV configuration files"), the export and import information is sent to this system alone and not to all connected systems. The central MAREN system must be available when exporting and importing the tapes. A maximum of 10 central MAREN systems can be specified.
To prevent unnecessarily long access times, only the central MAREN system on which the MAREN catalog was installed should be defined under ROBAR. Otherwise the other systems would receive redundant information and would laboriously update their MAREN catalogs.
Initializing cartridges
In an archive system controlled by ROBAR, tapes should always be initialized using MAREN(MARENADM). The mount request is issued through the MAREN statement INITIALIZE-VOLUMES and the message MARM1IB is issued.
You can also initialize a volume using the INIT utility program.
In this case message NKVT013 is displayed.