Advanced Topics › Performance Considerations

Performance Considerations

CA MIM provides resource serialization services among multiple z/OS operating systems. CA MII lets sites share DASD resources, CA MIA lets sites share tape devices, and CA MIC allows console data (messages and commands) to be routed across systems. A number of factors, both internal and external to the CA MIM address space, can cause CA MIM to provide less than optimal service times. External factors such as CA MIM address space dispatching priority have a direct impact on the ability of the CA MIM address space to provide adequate service times to its service requestors.

Additionally, there are a number of CA MIM internal parameters that can affect the performance of a given CA MIM address space. The type of cross-system communication method selected, the CA MIM features activated, and the type and volume of managed workload are a few of the internal factors that govern the performance of a CA MIM address space. This section examines the internal and external forces that may impact CA MIM performance in your environment.