Run Control-M on the CPU Where Most JES2 Activity Is Performed

In a Shared-Spool complex (MAS), one CPU may perform most of the accesses to JES. For example, this can happen when

• all or most of the printers are physically connected to one CPU
• all or most of the jobs are submitted through one CPU
• all or most of the reports are created on one CPU
• all or most of the NJE or RJE lines are connected to one CPU
• one CPU is much stronger (in terms of MIPs) than the others and it effectively monopolizes access to the JES files

If this is the situation at your data center, it is recommend to run the Control‑M monitor on the CPU where most of the JES activity is performed. This optimizes the Control‑M monitor’s communication with JES2.

In general, non-balanced access by different CPUs to JES files can be controlled and balanced through appropriate JES2 parameters.