Method and a system for determining an appropriate amount of dat

Details Method and a system for determining an appropriate amount of dat Method and a system for determining an appropriate amount of dat

1998-01-30

2000-08-01

Gossage, Glenn

Electrical computers and digital processing systems: memory

Storage accessing and control

Hierarchical memories

711133, 711137, 711113, G06F 1200

Patent

active

060981539

ABSTRACT:
A method and a system for determining how much data to cache, that is, optimizing disk caching control by selecting the optimal staging mode are disclosed. Specifically, the method and system of the present invention provides an analytical framework for determining how much data to cache thus producing a maximum hit rate and optimal utilization of computer system resources. The method and system in accordance with the present invention includes determining a history of referencing data on a disk and predicting an optimal staging mode from a plurality of staging modes based upon the history. The method and system of the present invention in the preferred embodiment allow staging in one of at least three modes: record staging, staging to the end of track, and full track staging. In using the history of data referencing to predict the optimal staging mode, the method and system of present invention provide a thorough analytical framework for determining which of the modes of staging data is most desirable in view of prior referencing patterns.

REFERENCES:
patent: 4937736 (1990-06-01), Chang
patent: 5226141 (1993-07-01), Esbensen
patent: 5283884 (1994-02-01), Menon et al.
patent: 5353430 (1994-10-01), Lautzenheiser
patent: 5418921 (1995-05-01), Cortney et al.
patent: 5568628 (1996-10-01), Satoh et al.
patent: 5619675 (1997-04-01), De Martine et al.
patent: 5649153 (1997-07-01), McNutt
patent: 5941981 (1999-08-01), Tran
"Record Caching with Count Key Data Emulation on Fixed Block Architecture Devices," IBM Technical Disclosure Bulletin, vol. 38, No. 06,(Jun. 1995).
"Direct Access Storage Device Cache Segment Management," IBM Technical Disclosure Bulletin, vol. 37, No. 08, 473-477 (Aug. 1994).

Affiliated with

Also associated with

Rating

Method and a system for determining an appropriate amount of dat 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 a system for determining an appropriate amount of dat, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and a system for determining an appropriate amount of dat will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-674166