发明授权
- 专利标题： Managing read caching
- 专利标题（中）： 管理阅读缓存
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申请号： US13248068申请日： 2011-09-29
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公开(公告)号： US08812899B1公开(公告)日： 2014-08-19
- 发明人: Phillip P. Fultz , Kiran Madnani , Manpreet Singh
- 申请人： Phillip P. Fultz , Kiran Madnani , Manpreet Singh
- 申请人地址： US MA Hopkinton
- 专利权人： EMC Corporation
- 当前专利权人： EMC Corporation
- 当前专利权人地址： US MA Hopkinton
- 代理商 Krishnendu Gupta; Jason A. Reyes; John T. Hurley
- 主分类号： G06F11/00
- IPC分类号： G06F11/00
摘要：
A method is used in managing read caching. First and second read caches are maintained in a data storage system. The first read cache is controlled by a first storage controller and the second read cache is controlled by a second storage controller. Read cache data is copied from the first storage controller to the second storage controller. A failure of the first storage controller is detected. Based on the detection, the copied read cache data is processed at the second storage controller to make the copied read cache data available for use at the second storage controller.