Multiple processor data processing system with mirrored data for distributed access
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United States of America Patent
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-
Apr 1, 2003
Grant Date -
Sep 26, 2002
app pub date -
Mar 21, 2001
filing date -
Mar 21, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A data storage includes multiple disk units accessible to multiple processors/servers. The multiple disk units include a master disk unit and a one or more data-mirroring disk units. A data-mirroring disk unit is assigned to a corresponding ones of the multiple servers by one of the processors designated as the mount manager. Data is written by the processors to the data storage is written to the master disk unit, and copied by the data storage to the data-mirroring disk units. Data is read by each of the processors from the data-mirroring disk unit assigned to such processor.
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