The XCFGROUP system initialization parameter specifies the name of the cross-system coupling facility (XCF) group to be joined by this region.
SYS. Also, do not use the name
UNDESIG, which is reserved for use by the system programmer in your installation.
It is recommended that you use a group name beginning
with the letters DFHIR
.
You can specify XCFGROUP on the SIT macro or as a SYSIN override. You cannot specify it as a console override.
Each CICS region can join only one XCF group, which happens when it signs on to CICS interregion communication (IRC). The default XCF group is DFHIR000.
For introductory information about XCF/MRO, and instructions on how to set up XCF groups, see Cross-system multiregion operation (XCF/MRO) .
For information on how resource security can provide a further level of security to transaction security, see Resource security for transactions.