Applying Cloud APAR PM81540 to CICS TS V5.1
ChrisHodgins 060000AX8A Visits (1233)
Are you planning to get up and running with the CICS Cloud and have installed or are planning to install CICS TS V5.1? If so, you will need to apply APAR PM81540. This provides support for the latest CICS Explorer V5.1.1, which is the primary access point for everything in the CICS Cloud. The APAR description itself provides guidance as to how to apply it but I wanted to extend that a little further to point out a gotcha we discovered in testing.
The APAR description points out that as long as you apply it to the Maintenance Point (MP) CMAS first you can then individually apply the APAR to any other connected CMAS at a later stage. This continues to be true but there is one exception to that rule. If you want your MAS regions to be able to participate in a CICS platform, you must also upgrade the CMAS connected to that MAS and the MAS itself before you install your platform.
Without doing this, it is possible the MAS won't connect to it's CICSplex. In this situation, restart your CMAS and MAS with the APAR applied and everything should reconnect.