Data redundancy methods and apparatus
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United States of America Patent
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-
Apr 29, 2003
Grant Date -
N/A
app pub date -
Aug 2, 1999
filing date -
Aug 2, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A data storage apparatus has a plurality of n disks and data comprising a plurality of data groupings stored respectively across the plurality of n disks. Each one of the n data groupings comprises a data portion and a data redundancy portion. Advantageously, the n data portions are recoverable from any and all combinations of n-m data grouping(s) on n-m disk(s) when the other m data grouping(s) are unavailable, where 1.ltoreq.m
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