Method for speculative streaming data from a disk drive

Details Method for speculative streaming data from a disk drive Method for speculative streaming data from a disk drive

2005-05-10

2005-05-10

Nguyen, Van Thu (Department: 2824)

Static information storage and retrieval

Associative memories

Ferroelectric cell

C365S189011

Reexamination Certificate

active

06891740

ABSTRACT:
A method and program product supporting speculative data transfers in a disk drive. Requested first data are read from a disk. Before the first data are read, a determination is made as to whether there are un-requested second data that are likely to be requested at a later time as part of a data stream. If so, then a determination is made as to whether the second data and the first data are stored in locations that are physically/logically proximate on the disk. If the second data are close to the first data, then the second data are speculatively read and stored in a local disk cache. If a subsequent request comes to the disk drive for the second data, then the second data are quickly produced from the disk cache rather than being slowly read off the disk.

REFERENCES:
patent: 5577220 (1996-11-01), Combs et al.
patent: 5748972 (1998-05-01), Clark et al.
patent: 6763424 (2004-07-01), Conley

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