发明名称 |
COMPUTER SYSTEM AND DATA BACKUP METHOD |
摘要 |
The present invention proposes a computer system and data backup method which enable improvements in the response performance of a storage apparatus to a write request from a host apparatus. In a case where, during execution of same intra-enclosure copy processing, a primary storage apparatus receives a write request in which the data write destination is a storage area in a target range for the same intra-enclosure copy processing in a first primary volume in the primary storage apparatus, the primary storage apparatus transmits an advance notification storing an address of a storage area in a secondary storage apparatus which corresponds to the data write destination storage area designated in the write request to the secondary storage apparatus such that an on-demand copy is executed based on the advance notification in the secondary storage apparatus. |
申请公布号 |
US2012246424(A1) |
申请公布日期 |
2012.09.27 |
申请号 |
US201113122690 |
申请日期 |
2011.03.24 |
申请人 |
YUHARA ATSUSHI;KUWABARA HIROSHI;HIWATASHI JUNICHI;HITACHI, LTD. |
发明人 |
YUHARA ATSUSHI;KUWABARA HIROSHI;HIWATASHI JUNICHI |
分类号 |
G06F12/16;G06F12/00 |
主分类号 |
G06F12/16 |
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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