Replicating the DBC by using a different DBC group
Using this procedure is recommended in the following situations:
Multiple DBC subsystems are running on the same LPAR but are in different DBC groups, as shown in the following figure.
Different DBC groups on one LPAR
Multiple DBC subsystems are running in the same sysplex but on different LPARs, they are in different DBC groups, and the RTCS system registry is shared, as shown in the following figure.
Multiple DBC groups sharing one RTCS system registry
For example, assume that you have Db2 subsystems that represent the test and production environments on the same LPAR (or in the same sysplex where the RTCS system registry is shared). You should separate the DBC subsystems containing product code accessing those Db2 subsystems so that you can roll maintenance into production in a controlled manner. The test and production DBC subsystems will use separate runtime data sets, option sets, and LGC product-specific registry datastore. Because the RTCS system registry is used to find the LGC product-specific registry datastore, you need to use a special ZDBCssid DD statement in the product CLISTS and batch jobs to retrieve the option set for the correct DBC Group.
For more information about the ZDBCssid DD statement, see: