发明名称 |
Method and apparatus for controlling data storage within a data storage system |
摘要 |
A host data processing system includes a data storage system having a cache memory and a back end storage. In response to a detection of an event failure during an input/output (I/O) request from the host data processing system to the data storage system, the data associated with the I/O request is forwarded to the back end storage data, and a copy of the data associated with the I/O request is sent to the cache memory. A determination is made as to whether or not there is an acknowledgement from the back end storage regarding the receipt of the data associated with the I/O request. If there is an acknowledgement from the back end storage regarding the receipt of the data associated with the I/O request, the data associated with the I/O request is flushed from the cache memory, and the received acknowledgement is routed to the host data processing system. |
申请公布号 |
US2005102582(A1) |
申请公布日期 |
2005.05.12 |
申请号 |
US20040839645 |
申请日期 |
2004.05.05 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
FUENTE CARLOS F.;RICKARD THOMAS W.;SCALES WILLIAM J. |
分类号 |
G06F11/00;G06F11/14;G06F11/20;(IPC1-7):G06F11/00 |
主分类号 |
G06F11/00 |
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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