发明名称 Management of write cache using stride objects
摘要 Method, system, and computer program product embodiments for, in a computing storage environment for destaging data from nonvolatile storage (NVS) to a storage unit, identifying working data on a stride basis by a processor device are provided. A multi-update bit is established for each stride in a modified cache. The multi-update bit is adapted to indicate at least one track in a working set. A schedule of destage scans is configured based on a plurality of levels of urgency. A destage operation is performed based on at least one of a number of strides examined by the destage scans, whether the multi-update bit is set, and whether an emergency level of the plurality of levels of urgency is active.
申请公布号 US8332589(B2) 申请公布日期 2012.12.11
申请号 US20100894019 申请日期 2010.09.29
申请人 BEARDSLEY BRENT C.;BENHASE MICHAEL T.;GUPTA LOKESH M.;HYDE, II JOSEPH S.;WILLIAMS SONNY E.;INTERNATIONAL BUSINESS MACHINES CORPORATION 发明人 BEARDSLEY BRENT C.;BENHASE MICHAEL T.;GUPTA LOKESH M.;HYDE, II JOSEPH S.;WILLIAMS SONNY E.
分类号 G06F12/00 主分类号 G06F12/00
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