发明名称 |
VSAM SMART REORGANIZATION |
摘要 |
Various embodiments for adaptive reorganization of a virtual storage access method (VSAM) data set are provided. In one exemplary embodiment, upon each control interval (CI) split of a plurality of CI splits occurring over a period of time, historical data including a key value for a record causing each CI split is recorded in a data repository. The historical data is analyzed with a predictive algorithm to determine an amount of free space to be allocated to each of a plurality of control intervals generated pursuant to the adaptive reorganization. The predictive algorithm allocates a greater percentage of the free space to a first location of the VVDS having a larger proportion of historically placed key values than a second location of the VVDS having a smaller proportion of the historically placed key values.
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申请公布号 |
US2010287354(A1) |
申请公布日期 |
2010.11.11 |
申请号 |
US20090435576 |
申请日期 |
2009.05.05 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
LEHR DOUGLAS L.;MCCUNE FRANKLIN E.;REED DAVID C.;SMITH MAX D. |
分类号 |
G06F12/02;G06F9/455;G06F12/00;G06F17/30 |
主分类号 |
G06F12/02 |
代理机构 |
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