Patent ID: 6460144
Filing Date: 2002-10-01
Classification: G06F

Abstract:
A method of providing resilience in a multi-node computer system comprising a plurality of computer hardware nodes, including a plurality of active nodes and at least one standby node, the method comprising:(a) associating at least one system disk and at least one backup disk with each of the nodes; (b) hosting a plurality of server software installations on respective ones of the nodes, each of the server software installations being defined by information stored on a respective one of the system disks; (c) maintaining synchronized backup copies of the system disks on respective ones of the backup disks; and (d) in the event of failure of one of the active nodes, reconfiguring the system to cause the standby node to pick up the backup disk associated with the failed node, and relocating the server software installation currently hosted on the failed node onto the standby node.