Distributed and geographically dispersed quorum resource disks
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United States of America Patent
Stats
-
Aug 24, 2004
Grant Date -
Jul 18, 2002
app pub date -
Jan 12, 2001
filing date -
Jan 12, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A server cluster quorum disk composed of two or more separate, intercommunicating disk drives or LUNs. The disk drives or LUNs that together compose a quorum disk may be physically separated by significant distances to form a geographically dispersed quorum disk, or may be more closely physically associated to form a distributed quorum disk. In either case, the two or more disk drives or LUNs closely cooperate to provide the virtual quorum disk interface identical to that of a single, currently available quorum disk with the exception that, upon failure of a disk LUN component of a distributed or geographically dispersed quorum disk, the distributed or geographically dispersed quorum disk continues to function without interrupting or degrading the server cluster in which the quorum disk is employed.
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