Invention Grant
US08291189B2 Storage system and storage control method that compress and store data elements
有权
存储系统和存储控制方法，压缩和存储数据元素
- Patent Title: Storage system and storage control method that compress and store data elements
- Patent Title (中): 存储系统和存储控制方法，压缩和存储数据元素
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Application No.: US13335644Application Date: 2011-12-22
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Publication No.: US08291189B2Publication Date: 2012-10-16
- Inventor: Kenta Shiga
- Applicant: Kenta Shiga
- Applicant Address: JP Tokyo
- Assignee: Hitachi, Ltd.
- Current Assignee: Hitachi, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Stites & Harbison, PLLC
- Agent Juan Carlos A. Marquez, Esq.
- Main IPC: G06F12/00
- IPC: G06F12/00
Abstract:
A pool is formed based on a plurality of storage devices. This pool is constituted by a plurality of real pages. Real pages of different lengths are included in this plurality of real pages. Among a plurality of virtual pages which make up a virtual volume, a controller compresses a write data element for a write destination virtual page, selects a real page of a real page length based on the data length of a data unit including the compressed write data element, and allocates the selected real page to the write destination virtual page.
Public/Granted literature
- US20120102294A1 Storage System and Storage Control Method that Compress and Store Data Elements Public/Granted day:2012-04-26
Information query
