发明授权
- 专利标题： Performance-based grouping of storage devices in a storage system
- 专利标题（中）： 存储系统中基于性能的存储设备分组
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申请号： US14547366申请日： 2014-11-19
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公开(公告)号： US09588690B2公开(公告)日： 2017-03-07
- 发明人: Mudi M. Fluman , Yaacov Frank , Yehuda Shiran , Ronny Vatelmacher
- 申请人： International Business Machines Corporation
- 申请人地址： US NY Armonk
- 专利权人： International Business Machines Corporation
- 当前专利权人： International Business Machines Corporation
- 当前专利权人地址： US NY Armonk
- 代理商 Edward J. Wixted, III; Walter L. Rudberg
- 主分类号： G06F3/06
- IPC分类号： G06F3/06 ; G06F11/14 ; G06F13/16
摘要：
A computer determines an intrinsic read speed and an intrinsic write speed associated with a first disk and a second disk. The computer receives a request to read a portion of data, wherein the portion of data is stored redundantly on both the first and second disk. The computer identifies a first latency associated with reading the portion of data from the first disk, where the first latency is based on at least the intrinsic read speed and the intrinsic write speed associated with the first disk. The computer identifies a second latency associated with reading the portion of data form the second disk, wherein the second latency is based on at least the intrinsic read speed and the intrinsic write speed associated with the second disk. The computer determines that the first latency exceeds the second latency. The computer selects the second disk to read the portion of data.
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