Excluding a database from data sharing

If you specify ACCESS=EX, or leave the value for ACCESS= blank, the named database is not accessed concurrently by any other IMS system.

Register the database with DBRC, specifying a share level of zero.

Databases who data does not need to be shared with any other IMS systems are owned by the IMS online system you define. If you do not want to use DBRC to control authorization to access these databases, do not register them.