Unisys Corporation

Steven George Skinner

James Albert Fontana

Joseph Peter Stefaniak

Anthony Reginald Pitchford

Mark Lynn Preston

Matthew Ky Phuong

Donna Lynn Goodman

The method of the present invention is useful in detecting the lack of majority cluster nodes within a cluster, and reorganizes the cluster membership to allow for running with less than a majority of nodes connected. As nodes become alive, they are added to the cluster until the original majority is reached, which then allows for the cluster to return to normal operation. Thus, the method of the present invention allows for the revival and reconstitution of a majority node set of clusters.

Method to revive and reconstitute majority node set clusters

The method of the present invention is useful in a computer system including at least two server nodes, each of which can execute clustered server software. The program executes a method for providing data to restore clustering when clustering services fail. The method includes the step of comparing current configuration data to previous configuration data. Next, the method compares the current configuration data to a standard configuration data. Finally, the method compares a set of operations to a standard clustering functionality.

Method for diagnosing hardware configuration in a clustered system

The method and system of the present invention solves the problems of the prior art by creating several components to detect and correct an out of date component. A component is considered out of date if one of the constituent files is newer than the components. At that point a build of the component is in order. A component dependent on another is considered out of date if the public interfaces to the component change. The interfaces of the dependent component do not necessarily have to be used by the component in question to affect the build situation. A component is considered up to date if all constituent files have a time stamp earlier than the component and no dependent components have changed their interfaces. Each of the components involved will act upon one of the situations to determine if a build should be done.

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Trabuco Canyon, CA, United States of America

Steven George Skinner