File portion logging and arching by means of an auxilary database
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United States of America Patent
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Apr 1, 1997
Issued Date -
N/A
app pub date -
Dec 15, 1994
filing date -
Dec 10, 1993
priority date (Note) -
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status (Latency Note)
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Abstract
In a hierarchical storage management system, files are automatically archived when they have not been accessed for a specified period. With large database files, the file cannot be archived, even though only a small number of records has been used. In this invention an auxiliary database is maintained indicating which data blocks have been accessed and on what dates. Non-accessed blocks and then be archived and deleted from the disk file to reduce storage requirements.
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