Invention Grant
- Patent Title: Storage management apparatus, a storage management method and a storage management program
- Patent Title (中): 存储管理装置,存储管理方法和存储管理程序
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Application No.: US12255869Application Date: 2008-10-22
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Publication No.: US08209511B2Publication Date: 2012-06-26
- Inventor: Takumi Tomita , Nobuo Beniyama , Yuji Mizote , Satoshi Fukuda
- Applicant: Takumi Tomita , Nobuo Beniyama , Yuji Mizote , Satoshi Fukuda
- Applicant Address: JP Tokyo
- Assignee: Hitachi, Ltd.
- Current Assignee: Hitachi, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Brundidge & Stanger, P.C.
- Priority: JP2008-214485 20080822
- Main IPC: G06F12/02
- IPC: G06F12/02

Abstract:
A storage management apparatus performs migration considering an I/O load that will be generated during migration between a source array group and a destination array group. To migrate data from the source array group to the destination array group, a bandwidth that is available for use between the source and destination array groups is calculated. A volume that is within the source array group, and that has a write I/O amount that is smaller than the calculated bandwidth, is selected as the source volume for the migration, wherein the write I/O amount is the information transmission amount of information that is written. Data is thus migrated from the selected volume to the movement destination array group.
Public/Granted literature
- US20100049934A1 STORAGE MANAGEMENT APPARATUS, A STORAGE MANAGEMENT METHOD AND A STORAGE MANAGEMENT PROGRAM Public/Granted day:2010-02-25
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