发明名称 File server, file management system and file management method
摘要 When receiving a file access from the client, the file access program refers to the mapping table, and processes an access to files of on volumes of RAID groups. The file server analyzes the file access states, and groups the files depending on the access time period, defines the file migration pattern based on the grouping, migrates the files, and then carries out a power management operation like a spin-down/-up operation on the RAID groups based on the migration pattern.
申请公布号 US8171215(B2) 申请公布日期 2012.05.01
申请号 US20090385281 申请日期 2009.04.03
申请人 IKAWA HIROFUMI;SAIKA NOBUYUKI;MORIWAKE SHINICHI;KAMEI HITOSHI;NAKANO TAKAHIRO;HITACHI, LTD. 发明人 IKAWA HIROFUMI;SAIKA NOBUYUKI;MORIWAKE SHINICHI;KAMEI HITOSHI;NAKANO TAKAHIRO
分类号 G06F12/00;G06F17/30 主分类号 G06F12/00
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