Method and apparatus for reducing power consumption by a disk dr

Details Method and apparatus for reducing power consumption by a disk dr Method and apparatus for reducing power consumption by a disk dr

1996-09-27

1998-07-28

Ray, Gopal C.

Electrical computers and digital processing systems: memory

Storage accessing and control

Hierarchical memories

711170, 360 721, G06F 132

Patent

active

057872961

ABSTRACT:
An apparatus is programmed with a plurality of programming instructions for generating, if possible, an alternative disk block allocation for a current disk block allocation that will yield reduced overall power consumption for a sequence of disk accesses. In some embodiments, the programming instructions include the logic for tracing the sequence of disk accesses to determine the current disk block allocation, the logic for generating the alternative disk block allocation, if possible, using the trace results, and the logic for effectuating the alternate disk block allocation, if generated. In one particular embodiment, the logic for generating the alternative disk block allocation employs a random search approach, while in another embodiment, the logic for generating the alternative disk block allocation employs a heuristic approach.

REFERENCES:
patent: 4536837 (1985-08-01), Olson et al.
patent: 5175853 (1992-12-01), Kardach et al.
patent: 5274826 (1993-12-01), Kardach et al.
patent: 5274834 (1993-12-01), Kardach et al.
patent: 5291604 (1994-03-01), Kardach et al.
patent: 5423046 (1995-06-01), Nunnelley et al.
patent: 5471604 (1995-11-01), Hasburn et al.
patent: 5600840 (1997-02-01), Pearce et al.
patent: 5652873 (1997-07-01), Fecteau et al.
Advanced Power Management (APM) BIOS Interface Specification, published by Intel Corporation and Microsoft Corporation, Revision 1.2, Feb. 1996, pp. i-v and 1-75.
"Adaptive Block Rearrangement", Sedat Akyurek and Kenneth Salem, ACM Transactions on Computer Systems, vol. 13, No. 2, May 1995, pp. 89-121.

Affiliated with

Also associated with

Rating

Method and apparatus for reducing power consumption by a disk dr does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for reducing power consumption by a disk dr, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for reducing power consumption by a disk dr will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-33034