发明名称 |
Storage system and file-reference method of remote-site storage system |
摘要 |
A storage system conducting remote copy functions such that, when data is updated at a local site, contents of the update can be referred to in real time by storage at a remote site. A disk-control unit at a remote site receives file data written in accordance with an update of a file in a storage system at a local site and a history of the file-management information from the storage system at the local site and stores the data and the history. A file-system processing unit refers to the history and updates the file-management information in a file-system cache in accordance with the update of the file in the storage system at the local site. When a client issues a read request, the file-system processing unit refers to the file-management information updated in the file-system cache and transfers the contents of the update of the file to the client. |
申请公布号 |
US2005091448(A1) |
申请公布日期 |
2005.04.28 |
申请号 |
US20040766022 |
申请日期 |
2004.01.29 |
申请人 |
NAKATANI YOJI;KITAMURA MANABU |
发明人 |
NAKATANI YOJI;KITAMURA MANABU |
分类号 |
G06F3/06;G06F11/20;G06F12/00;G06F12/08;G06F17/30;(IPC1-7):G06F12/00 |
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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