SYSIDNT

The SYSIDNT system initialization parameter specifies a 1- to 4-character name that is known only to your CICS® region.

SYSIDNT={CICS|name}

If your CICS region also communicates with other CICS regions, the name you choose for this parameter to identify your local CICS region must not be the same name as an installed CONNECTION resource definition for a remote region.

The value for SYSIDNT, whether specified in the SIT or as an override, can only be updated on a cold start. After a warm start or emergency restart, the value of SYSIDNT is that specified in the last cold start.

For information about the SYSIDNT of a local CICS region, see The local CICS region name.