Example 2—Using RACF sysplex data sharing

Your installation has allocated two primary RACF® data sets:

For recovery, the installation also wants a backup data set for each primary RACF data set, although the backup of the data sets is different:

For SYS1.RACFP1, all updates to the primary database, except statistics, are duplicated on the backup database.
For SYS1.RACFP2, all updates to the primary database, including statistics, are duplicated on the backup database.

Note:

The sysplex communication bit and the RACF data sharing mode bit are specified only in the entry for the first data set.
RACF allocates 51 (255 × .20) resident data blocks for the first backup data set buffer and 10 (50 × .20) for the second.

The following data set name table correctly follows these criteria:

Figure 1. ICHRDSNT example 2 — data sharing option and split database

AL1(2): Number of data sets in the primary RACF database
CL44'SYS1.RACFP1': Name of first primary data set
CL44'SYS1.RACFB1': Name of first backup data set
AL1(255): Number of resident data blocks (for primary database)
X'8C': Flags; all updates other than statistics are to be duplicated in the backup data set. The sysplex communication and data sharing bits are both turned on.
CL44'SYS1.RACFP2': Name of second data set in the primary RACF database
CL44'SYS1.RACFB2': Name of second data set in the backup RACF database
AL1(50): Number of resident data blocks
X'C0': Flags; all updates, including statistics, are to be duplicated in the backup data set.