发明授权
US09003150B2 Tiered storage system configured to implement data relocation without degrading response performance and method
有权
分层存储系统配置为实现数据重定位，而不会降低响应性能和方法
- 专利标题： Tiered storage system configured to implement data relocation without degrading response performance and method
- 专利标题（中）： 分层存储系统配置为实现数据重定位，而不会降低响应性能和方法
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申请号： US13509703申请日： 2012-04-26
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公开(公告)号： US09003150B2公开(公告)日： 2015-04-07
- 发明人: Yoshinori Ohira , Hiroaki Akutsu
- 申请人： Yoshinori Ohira , Hiroaki Akutsu
- 申请人地址： JP Tokyo
- 专利权人： Hitachi, Ltd.
- 当前专利权人： Hitachi, Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： Volpe and Koenig, P.C.
- 国际申请： PCT/JP2012/002882 WO 20120426
- 国际公布： WO2013/160958 WO 20131031
- 主分类号： G06F12/06
- IPC分类号： G06F12/06 ; G06F12/02 ; G06F3/06
摘要：
An example of an information storage system includes physical storage drives for providing real storage areas to a pool which is tiered into tiers different in performance, and a controller. The controller monitors accesses in a first tier in the pool. The controller determines a loaded state of the first tier based on the accesses to the first tier. The controller holds management information relating loads to the first tier to relocation speeds and/or modes of moving data in data relocation between a second tier in the pool and the first tier. The controller determines at least one of a relocation speed and a mode of moving data in data relocation between the second tier and the first tier based on the determined loaded state of the first tier and the management information.
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