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专利名称：Method of improving the availability of a
computer clustering system through the useof a network medium link state function
发明人：Daniel M. Price申请号：US09855592申请日：20010514
公开号：US20020083036A1公开日：20020627
专利附图：
摘要：A method for increasing the availability of a first server included in a computercluster when a second server fails. Each server in the computer cluster has an associated
mass storage device and can process requests from any network device in the computercluster. Data is mirrored between the mass storage devices of the servers so that eachserver's mass storage device has a complete copy of all computer cluster data. Datamirroring takes place across a dedicated link, which reduces congestion on the rest of thecomputer cluster. When the first server detects a loss of communication from the secondserver, the first server determines if the loss of communication is a result of amalfunction of the dedicated link. If the dedicated link has failed, the first server
discontinues operation to avoid writing data to its associated mass storage device, whichcannot be mirrored due to the loss of communication. If the dedicated link is operational,the first server continues operation. In either case, since each server can process requestsfrom any network device and each server has a complete copy of all the network data,the computer cluster continues to be available for use even after a server is shut down.
申请人：PRICE DANIEL M.
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