发明名称 |
System and method for providing client-directed staging to improve non-sequential access performance in a caching disk storage system |
摘要 |
A client-directed pre-stage operation of a cache memory used to access data blocks from a mass data storage device attached to a host computer through a channel control processor is provided by a method and apparatus comprising a channel control processor for retrieving data blocks from the mass storage device to be pre-staged within the cache memory, a channel interface coupled between the channel control processor and the host computer, a mass storage device interface coupled between the channel control processor and the mass storage device, and a cache memory coupled between the channel interface and the mass storage interface; the cache memory is further coupled to the cache control processor to provide the cache control processor access to data stored within the cache memory. The cache control processor receives a cache bitmap from the host computer to specify the data blocks from the mass storage device to be pre-staged into the cache memory. Each bit within the cache bitmap corresponds to a data block within the mass storage device which may be pre-staged into the cache memory.
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申请公布号 |
US6834325(B1) |
申请公布日期 |
2004.12.21 |
申请号 |
US19990354482 |
申请日期 |
1999.07.16 |
申请人 |
STORAGE TECHNOLOGY CORPORATION |
发明人 |
MILILLO MICHAEL S.;WEST CHRISTOPHER J. |
分类号 |
G06F12/08;(IPC1-7):G06F12/08 |
主分类号 |
G06F12/08 |
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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