Abstract: A model and method that incorporates software into a network availability model is disclosed. An availability model models a platform having at least one software component having different classes of failures. The platform is within a network. The availability model includes a platform model for the platform parameters. The model also includes a software availability model within the platform model. The software availability model includes an aggregate failure rate for each of the classes of failures. The software availability model also includes an aggregate repair time for each of the classes of failures.

Abstract: A system for providing real-time cluster configuration data within a clustered computer network including a plurality of clusters, including a primary node in each cluster wherein the primary node includes a primary repository manager, a secondary node in each cluster wherein the secondary node includes a secondary repository manager, and wherein the secondary repository manager cooperates with the primary repository manager to maintain information at the secondary node consistent with information maintained at the primary node.

Abstract: The present invention describes a method and system for managing high-availability-aware components in a networked computer system. In particular, the method includes registering components and dynamically allocating roles and assignments to one or more of the registered components to achieve a desired level of redundancy based on component type information. The method may include an additional step of performing administrative actions on the registered components in response to a request from an external management agent in order to increase the availability of services provided by the high-availability-aware components. Further, the method may additionally include responding to an error by changing roles and assignments of one or more of the registered components, providing information to registered components so that related components may communicate to achieve a desired redundancy level, and/or maintaining additional information relevant to managing high-availability-aware components.

Abstract: A computer system program including an operating system and a plurality of system service modules generates a number of status messages representing selected milestone events while it is being loaded and run, including progress advisories and technical advisories. User-friendly icons are displayed on a display monitor in response to the progress advisories, indicating which milestone event is occurring and how much of the event has been completed. If there is a failure in loading the system program, a user can provide service personnel with an accurate evaluation of the system condition by reporting which icon was displayed last on the monitor. Technical advisories such as audit records which are not relevant to a user are stored as entries in a silent log for possible later use by service personnel.