The VMMCA is a diagnostic tool that you can use to scan important configuration settings for computers that either are serving or might serve VMM roles or other VMM functions. The VMMCA scans the hardware and software configurations of the computers that you specify, evaluates them against a set of predefined rules, and then provides you with error messages and warnings for any configurations that are not optimal for the VMM role or function that you specified for the computer.
NOTE: The VMMCA does not duplicate or replace the prerequisite checks performed during the setup of VMM 2008 components.
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For more information & step-by-step instructions on how to install and configure VMMCA, check out the SCVMM blog at:
http://blogs.technet.com/scvmm/archive/2009/01/05/scvmm-2008-installation-step-by-step.aspx
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