发明名称 |
SYSTEM, METHOD AND COMPUTER PROGRAM PRODUCT FOR MANAGING DATA USING A WRITE-BACK CACHE UNIT |
摘要 |
<p>providing a write-back cache unit coupled to at least one storage unit; receiving a request to write a new data version to a certain cache data allocation unit; determining, in response to a data storage policy, whether to overwrite a cached data version being cached in the certain cache data allocation unit or to perform a destage of the cached data version to a first storage unit before writing the new data version to the certain cache allocation unit; receiving a request to read a data version that corresponds to a certain point in time and scanning a first data structure representative of write operations and a second data structure representative of revert operations to determine a location of the requested data version. ® KIPO & WIPO 2009</p> |
申请公布号 |
KR20090091746(A) |
申请公布日期 |
2009.08.28 |
申请号 |
KR20097011783 |
申请日期 |
2007.12.19 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
FACTOR MICHAEL;FIENBLIT SHACHAR;LADEN GUY;LORENZ DEAN HAR'EL;PINTER SHLOMIT SARAH;TA SHMA PAULA KIM |
分类号 |
G06F12/08;G06F9/06 |
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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