Method and system of improving disk access time by compression

Details Method and system of improving disk access time by compression Method and system of improving disk access time by compression

2006-06-06

2006-06-06

Padmanabhan, Mano (Department: 2188)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

C711S202000, C711S221000

Reexamination Certificate

active

07058769

ABSTRACT:
A data storage system using compression to increase performance. The system has a hardware compression/decompression engine for performing data compression on a data block and performing data decompression of the data block. A controller is coupled to the hardware compression/decompression engine and is for storing compressed data of the data block in a primary region of a data storage device and is further for storing any overflow from the primary region in an overflow region of the data storage device. The overflow region is dedicated to the primary region. There may be a number of such primary regions and a number of such secondary regions, with the secondary regions mapped one-to-one to the primary regions.

REFERENCES:
patent: 6691209 (2004-02-01), O'Connell
patent: 6718444 (2004-04-01), Hughes
patent: 6804162 (2004-10-01), Eldridge et al.

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