Minimization of read response time

A method, system and computer program product for minimizing read response time in a storage subsystem including a plurality of resources is provided. A middle logical block address (LBA) is calculated for a read request. A preferred resource of the plurality of resources is determined by calculatin...

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Main Authors Fairhurst, Matthew John, Kubo, Robert Akira, Miller, Justin Thomson
Format Patent
LanguageEnglish
Published 15.11.2011
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Abstract A method, system and computer program product for minimizing read response time in a storage subsystem including a plurality of resources is provided. A middle logical block address (LBA) is calculated for a read request. A preferred resource of the plurality of resources is determined by calculating a minimum seek time based on a closest position to a last position of a head at each resource of the plurality of resources, estimated from the middle LBA. The read request is directed to at least one of the preferred resource or an alternative resource.
AbstractList A method, system and computer program product for minimizing read response time in a storage subsystem including a plurality of resources is provided. A middle logical block address (LBA) is calculated for a read request. A preferred resource of the plurality of resources is determined by calculating a minimum seek time based on a closest position to a last position of a head at each resource of the plurality of resources, estimated from the middle LBA. The read request is directed to at least one of the preferred resource or an alternative resource.
Author Fairhurst, Matthew John
Miller, Justin Thomson
Kubo, Robert Akira
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References Nagshain (7330930) 20080200
Mason, Jr. et al. (6611896) 20030800
Yochai et al. (6954833) 20051000
Choi et al. (2006/0206935) 20060900
Mayer et al. (7016980) 20060300
Ottesen (5463758) 19951000
Yanai et al. (5390313) 19950200
Munson (7185367) 20070200
Hrastar (2004/0098610) 20040500
Brewer et al. (2006/0253621) 20061100
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