Method and apparatus for using a USB cable as a cluster quorum device
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United States of America Patent
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Apr 15, 2008
Grant Date -
Feb 23, 2006
app pub date -
Jan 5, 2005
filing date -
Aug 23, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
A method for obtaining a quorum vote by a first node using a Universal Serial Bus (USB) quorum cable, wherein the USB quorum cable comprises a first end connected to a first node and a second end connected to a second node, including determining whether the USB quorum cable is reserved by the second node by querying a memory located in the USB quorum cable, if the USB quorum cable is not reserved by the second node attempting to reserve the USB quorum cable, determining whether the attempt to reserve the USB quorum cable was successful, and obtaining the quorum vote by the first node, if the attempt to reserve the USB quorum cable is successful.
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