Electrical computers and digital processing systems: memory – Storage accessing and control – Specific memory composition
Reexamination Certificate
2005-08-23
2005-08-23
Verbrugge, Kevin (Department: 2189)
Electrical computers and digital processing systems: memory
Storage accessing and control
Specific memory composition
C714S006130
Reexamination Certificate
active
06934804
ABSTRACT:
Method and apparatus for striping spare storage in a data storage system. Specifically the present invention describes a method and apparatus for storing data and spare storage in a data storage system having a plurality of physical storage devices. The plurality of physical storage devices is partitioned into a plurality of slices. Logical units of storage (LUNs) are created, wherein each LUN contains data, spare, and data redundancy. Each of the plurality of slices is assigned to one of the plurality of LUNs so as to distribute storage of data, data redundancy, and spare across all of the plurality of physical storage devices. Distribution of spare storage is concentrated at the inner zone of each of the plurality of physical storage devices. The data and spare storage can be distributed uniformly or with varying granularities across all of the plurality of physical storage devices.
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Verbrugge Kevin
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