Maintaining global information for the OLCSTAT data set
The OLCSTAT data set name is maintained in the RM resource structure. This ensures that all IMS systems in the IMSplex that can perform global online change use the same OLCSTAT data set name.
The first IMS system that starts in an IMSplex writes its OLCSTAT name to the OLCSTAT data set. IMS systems that subsequently start compare their OLCSTAT name to the OLCSTAT name in RM. If the OLCSTAT names do not match, IMS abends with 2800, code 09.