Communication Methods

Your managed resources are represented in transactions routed to all systems in the MIMplex. CA MIM has many transaction types including:

Device allocations
Resource access
Cross-system messages and commands
Systems status changes.

Transactions are transported using a common control file. CA MIM lets you pick from a number of control file architectures and storage mediums, and dynamically change communications methods during the execution.

The type of CA MIM cross-system communication method that is best suited for your environment depends on several factors. Before you proceed, we recommend that you read Performance Considerations in this chapter for a better understanding of CA MIM control file internals and externals.

The following sections provide an overview of the two primary communication methods available to CA MIM: physical and virtual.