System and method for data migration between high performance computing architectures and de-clustered RAID data storage system with automatic data redistribution
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United States of America Patent
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Dec 19, 2017
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app pub date -
May 29, 2015
filing date -
May 29, 2015
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Abstract
A system and method for data migration between data generating entities and de-clustered RAID storage employs a data re-distribution approach with the purpose of eliminating drives thrashing and attain an even I/O activity distribution for Physical Disk Extents (PDEs) residing on Physical Disks. The system monitors the I/O activity map, identifies competing over-used PDEs residing on the same physical disk drive, and if the drive thrashing is detected, re-directs “write” or “read” requests from the over-used PDEs to a different physical disk or to underused PDEs on the same physical disk.
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