Invention Grant
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
- Patent Title: Tiered storage system configured to implement data relocation without degrading response performance and method
- Patent Title (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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Application No.: US13509703Application Date: 2012-04-26
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Publication No.: US09003150B2Publication Date: 2015-04-07
- Inventor: Yoshinori Ohira , Hiroaki Akutsu
- Applicant: Yoshinori Ohira , Hiroaki Akutsu
- Applicant Address: JP Tokyo
- Assignee: Hitachi, Ltd.
- Current Assignee: Hitachi, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Volpe and Koenig, P.C.
- International Application: PCT/JP2012/002882 WO 20120426
- International Announcement: WO2013/160958 WO 20131031
- Main IPC: G06F12/06
- IPC: G06F12/06 ; G06F12/02 ; G06F3/06
Abstract:
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.
Public/Granted literature
- US20140019701A1 INFORMATION STORAGE SYSTEM AND METHOD OF CONTROLLING INFORMATION STORAGE SYSTEM Public/Granted day:2014-01-16
Information query
