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Generated January 22, 2018

Method and system for leveraging spares in a data storage system including a plurality of disk drives

Patent Number: 6,845,465

Patent Information

Abstract
A method and apparatus for leveraging spare disks in a data storage system. Specifically the present invention describes a method for data recovery and redundancy in a data storage system having a plurality of disk drives. The data storage system is grouped into a plurality of arrays having data redundancy. The plurality of arrays is arranged in an optimum combination of arrays of mirrored pairs of disk drives, arrays of three disk drives in a redundant array of independent disks (RAID) configuration, and arrays of more than three disk drives in a RAID configuration to maximize performance while providing data redundancy. For every failure of one of said plurality of arrays due to a failed disk drive, a new array having data redundancy in a RAID configuration is dynamically created in said plurality of arrays. The new array is optimized for best performance and contains information from the failed disk drive.
Patent Number: 6,845,465
Issue Date: 2005-01-18

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Citations

Patents cited by this patent

Patent Title
6,557,123 Data redundancy methods and apparatus
6,530,035 Method and system for managing storage systems containing redundancy data
6,154,853 Method and apparatus for dynamic sparing in a RAID storage system
6,079,029 Device array system providing redundancy of disks from active system disks during a disk failure

Patents that cite this patent

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6,934,804 Method and system for striping spares in a data storage system including an array of disk drives

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