File portion logging and arching by means of an auxilary databas

Details File portion logging and arching by means of an auxilary databas File portion logging and arching by means of an auxilary databas

1994-12-15

1997-04-01

Black, Thomas G.

395460, G06F 1730

Patent

active

056175663

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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