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Regions can be linked together into a complex. Within a complex, you can have two types of regions: focal and subordinate.
A focal region has visibility to, and command and control capabilities over, every region in the complex, including other focal regions.
A subordinate region only sends data to the focal regions. A subordinate does not receive data from other regions in the complex.
To reduce network traffic, focal regions only receive status information if someone is actually using one of the various monitors.
In a multisystem environment, operators can log on to one focal region and monitor the entire complex.
The Resource Automation Monitor database (RAMDB) for a focal region contains copies of the system images for all regions within the complex. The RAMDB for a subordinate region contains only the system images for itself.
In general, you configure regions on communication management configuration (CMC) systems (hosts) as focal, and all the others as subordinate.
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