1. A method for providing an automated diagnostic audit for a cluster computer system, the cluster computer system comprising a plurality of nodes, each of the plurality of nodes providing a mission-critical application to a plurality of clients, the method comprising: receiving information associated with the cluster computer system, the information comprising a plurality of system configuration parameters for each of the plurality of nodes in the cluster computer system; defining a plurality of system configuration categories associated with the plurality of system configuration parameters; defining a threshold benchmark for each of the plurality of system configuration categories, each of the plurality of threshold benchmarks based on a predefined set of rules; associating each of a portion of the plurality of system configuration parameters for each of the plurality of nodes with one of the plurality of system configuration categories; and generating audit information, the audit information based on a comparison of each of the portion of the plurality of system configuration parameters for each of the plurality of nodes to the threshold benchmark for the associated system configuration category.