Unisys Corporation

Matthew Ky Phuong

Steven George Skinner

Mark Lynn Preston

Ronald Leaton Skeoch

Sherrie Le Houang

Jay Hyon Kang

An embodiment of the present invention is a technique for testing core functionality of a clustered system having a plurality of nodes. A cluster population test that includes populating the clustered system with cluster-aware applications is performed. A crash reboot test is performed to stress core operations running within the clustered system; the crash reboot test includes executing a series of crashes or reboots on a subset of the nodes. A move test that includes moving resources to a selected node of the clustered system and verifying that the resources remain on-line at the selected node is performed. A stop test that includes stopping cluster service on a selected subset of nodes of the clustered system and restarting the cluster service on the selected subset of nodes is performed. A Blue Screen Of Death (BSOD) test that includes crashing in BSOD mode one of the nodes of the clustered system and testing reservation release on the crashed node is performed.

Method and system for efficiently testing core functionality of clustered configurations

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.

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Rosemead, CA, United States of America

Matthew Ky Phuong