CA MIM Release 12.0 can run concurrently with CA MIM Release 11.8, CA MIM Release 11.9, or CA MIM VM Release 11.5 on different systems in the same MIMplex.
When running the current release of CA MIM in mixed-level mode, upgrade all systems to the current Release 12.0 as quickly as possible to avoid any error conditions. We recommend, carrying out this upgrade over a period of days or weeks, not months.
CA MIM is a multisystem product. While CA MIM can run at different levels on each system, we recommend not to do so long term.
The cross-system communication architectures employed and the global functionality of each CA MIM component makes it impractical to run CA MIM tasks at different control logic levels in the same MIMplex.
For example, CTC IO recovery logic applied to one of five systems provides no benefit to the global MIMplex CTC recovery process. The same is true for global component functions provided by CA MIA, CA MIC, and CA MII.
We recommend running CA MIM at the current release on all systems.
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