发明名称 |
Structured data storage method and medium |
摘要 |
A WORM data storage medium includes primary (100, 200, 300, ...) and secondary (101-104) data storage areas in which data and pointers to allocated but unwritten update areas are written. Original and updated data is written in a write sequence or chain of primary data areas separated by branched secondary data storage areas. The most recent updated data is found in a two level search of primary and then secondary data storage areas in order to save time by searching only those secondary areas where the most recent update exist. <IMAGE> |
申请公布号 |
US5043967(A) |
申请公布日期 |
1991.08.27 |
申请号 |
US19900570035 |
申请日期 |
1990.08.20 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
GREGG, LEON E.;ROLFE, RANDY K. |
分类号 |
G06F3/06;G06F3/08;G06F12/00;G06F17/30;G11B20/12 |
主分类号 |
G06F3/06 |
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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