A method and apparatus for fast and reliable fencing of resources such as shared disks on a networked system. For each new configuration of nodes and resources on the system, a membership program module generates a new membership list and, based upon that, a new epoch number uniquely identifying the...http://www.google.de/patents/US6243814?utm_source=gb-gplus-sharePatent US6243814 - Method and apparatus for reliable disk fencing in a multicomputer system
