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CMEM Operation

If each CPU is fully controlled by its Control‑M system, only one CMEM subsystem is required on each CPU. The CMEM that is part of Control‑M system A runs on CPU A. The CMEM that is part of Control‑M system B runs on CPU B.

However, if each Control‑M system must acknowledge events that might occur under both CPUs, each CPU must operate two CMEM subsystems (one for Control‑M system A and the other for Control‑M system B). However, a job can be handled only by one CMEM subsystem.

The following table shows the number of CMEM subsystems needed for handling events:

Table 119 Number of CMEM Subsystems Needed for Handling Events

Event

Number of CMEM Subsystems

ON JOBARRIVAL

All CMEM Subsystems

ON JOBEND

All CMEM Subsystems

ON DSN

One CMEM Subsystem

ON STEP

One CMEM Subsystem

Parent Topic

Multi-CPU Configuration