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In a sysplex environment, you can configure multiple CAICCI instances to act as a CAICCI generic resource. CAICCI generic resources let you declare a group of CAICCI instances that are to be treated as a single logical entity, providing scalability, fault tolerance, and manageability benefits.
Consider a situation where CA IDMS/DB is running on five z/OS systems in a sysplex configuration. The individual systems are named CCI1 through CCI5, and each of these systems runs a database server.
Without CAICCI generic resources, CA IDMS/DB clients connecting to the mainframe specify the host name of a server to connect to. In this configuration, assigning particular users to specific database server instances is handled on a case-by-case basis; ongoing management can be a burden because adapting to changing workloads requires you to manually reconfigure client systems. Reconfiguring to achieve load balancing or to accommodate other mainframe changes is difficult, especially if large numbers of client systems are involved.
With a CAICCI generic resource, you assign a logical name to a collection of mainframe resources, avoiding many of the problems outlined previously. Clients connect using this logical name rather than a specific host name. You can reconfigure your mainframe resources without having to reconfigure client systems. You can adapt to changing mainframe requirements by simply changing server configurations.
Note: CAICCI generic resources works independently from CAICCI support for VTAM generic resources, and you can use either or both.
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