Method and system for maintaining disk location via homeness
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United States of America Patent
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May 4, 2010
Issued Date -
N/A
app pub date -
Nov 30, 2006
filing date -
Nov 30, 2006
priority date (Note) -
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Abstract
A method and system manages ownership information about disks in a storage network without the need for an emulated, partner mode system. The method and system provides for ownership information, including a current owner and a home owner for resources, such as disks, to be stored on each disk in a storage system, as well as to be stored in memory on each storage system node in the network. A further aspect of the invention is a disk homeness application program interface (API), which provides commands that can be utilized by an administrator at a host computer to set, modify and display ownership information about each disk in the cluster. Upon a takeover, any node in the network can takeover one or more disks by reading the ownership information stored on the disks or in the tables.
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