CSLG=xxx parameter for procedures
Use the CSLG=xxx parameter in procedure to specify a 3-character suffix for the Common Service Layer IMS.PROCLIB member, DFSCGxxx.
When you specify this parameter, IMS uses the Common Service Layer (CSL) to manage and operate the IMSplex. The minimum configuration for the CSL is to have one SCI and one OM on each z/OS® image where an IMS control region resides.
This parameter must be explicitly specified. There are no default values.