发明名称 |
Storage sub-system and method for controlling the same |
摘要 |
<p>The present invention provides means for effectively reducing the amount of data by means of de-duplication in a disk array apparatus having a data guarantee code.</p><p>A control means for the disk array apparatus that adds a data guarantee code to each logical data block and checks the data guarantee code when reading data has a de-duplication performing function and control means for: generating LA substitution information for a function checking the data guarantee code or read data location address substitution information when performing the de-duplication and storing data; performing the de-duplication using the above-mentioned information when reading data; and thereby avoiding false diagnosis of the data guarantee code check.
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申请公布号 |
EP2042980(A3) |
申请公布日期 |
2011.04.13 |
申请号 |
EP20080250820 |
申请日期 |
2008.03.11 |
申请人 |
HITACHI, LTD. |
发明人 |
ARAI, MASAHIRO;SHIMADA, KENTARO;NAKAMURA, SHUJI |
分类号 |
G06F3/06;G06F11/10 |
主分类号 |
G06F3/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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