System for achieving enhanced performance and data availability in a unified redundant array of disk drives by using user defined partitioning and level of redundancy
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United States of America Patent
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Jan 5, 1999
Grant Date -
N/A
app pub date -
Sep 9, 1992
filing date -
Sep 9, 1992
priority date (Note) -
Expired
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Abstract
The present invention provides a system of hardware and software that combine to efficiently integrate the various requirements for system performance and system reliability in a RAID system. A user of the present invention is able to select from a range of system performance and reliability configurations, independently of each other. From user specifications, the present invention initially constructs a user space which must be mapped onto the physical storage space in the array of disk drives. The present invention preserves the orthogonality of performance and reliability concepts through a series of mappings that relate to these concepts independently as it transforms user space into the physical space of the disk array.
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