发明名称 |
Storage system, release method, and secondary storage apparatus |
摘要 |
The storage system includes page area association information that associates a page area that partitions a storage area in a real volume into predetermined storage areas with a page area that partitions a storage area in a virtual volume into predetermined storage areas; a pair setting unit for pairing a primary virtual volume that stores data from a host computer and a secondary virtual volume to store a copy of the data stored in the primary virtual volume; and a page release unit for releasing association between a page area in the secondary virtual volume and a page area in the secondary real volume associated in advance with the page area in the secondary virtual volume. |
申请公布号 |
US8677094(B2) |
申请公布日期 |
2014.03.18 |
申请号 |
US20080081737 |
申请日期 |
2008.04.21 |
申请人 |
IGARASHI YOSHINORI;SUZUKI HIDENORI;HITACHI LTD. |
发明人 |
IGARASHI YOSHINORI;SUZUKI HIDENORI |
分类号 |
G06F12/00;G06F13/00;G06F13/28 |
主分类号 |
G06F12/00 |
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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