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Globally Shared Resource Control Products

CA Compress issues a RESERVE against the Analysis and Control files to prevent simultaneous updates from multiple systems. Global shared resource control products, such as GRS or MIM, can convert a RESERVE to a global ENQ, which can cause a reserve contention problem. The problem can be prevented by making the following changes:

• Add the major ENQ names (QNAME): SYSxxxx (where xxxx is the subsystem name) for the Control File, and SHRINKFE for the Analysis File.
• Add the minor ENQ names (RNAME): VSAMFILE for the Control File, and the data set name that was selected for the Analysis File.