- 专利标题： Cache management of tracks in a first cache and a second cache for a storage
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申请号： US13456011申请日： 2012-04-25
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公开(公告)号： US08745332B2公开(公告)日： 2014-06-03
- 发明人: Michael T. Benhase , Binny S. Gill , Lokesh M. Gupta , Matthew J. Kalos
- 申请人： Michael T. Benhase , Binny S. Gill , Lokesh M. Gupta , Matthew J. Kalos
- 申请人地址： US NY Armonk
- 专利权人： International Business Machines Corporation
- 当前专利权人： International Business Machines Corporation
- 当前专利权人地址： US NY Armonk
- 代理机构： Konrad Raynes Davda & Victor LLP
- 代理商 David W. Victor
- 主分类号： G06F12/00
- IPC分类号： G06F12/00
摘要：
Provided a computer program product, system, and method for cache management of tracks in a first cache and a second cache for a storage. The first cache maintains modified and unmodified tracks in the storage subject to Input/Output (I/O) requests. Modified and unmodified tracks are demoted from the first cache. The modified and the unmodified tracks demoted from the first cache are promoted to the second cache. The unmodified tracks demoted from the second cache are discarded. The modified tracks in the second cache that are at proximate physical locations on the storage device are grouped and the grouped modified tracks are destaged from the second cache to the storage device.
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