Method and system for improving the performance of a...

Details Method and system for improving the performance of a... Method and system for improving the performance of a...

2005-07-05

2005-07-05

Vital, Pierre M. (Department: 2188)

Electrical computers and digital processing systems: memory

Storage accessing and control

Specific memory composition

C711S114000, C711S136000

Reexamination Certificate

active

06915378

ABSTRACT:
A method and system for improving the performance of a processing system is disclosed. The processing system comprises a plurality of host computers, at least one control unit (CU) coupled to the host computer. The control unit comprises a cache and disk array coupled to the CU. The method and system comprises querying an operating system of at least one host computer to determine the storage medium that contains an object to be cached and providing the data in the portion of the disk array to be cached. The method and system further comprises providing a channel command sequence and sending the channel command sequence to the CU via an I/O operation at predetermined time intervals until the object is deactivated. A method and system in accordance with the present invention instructs a control unit (CU) or a storage medium to keep some objects constantly in its cache, so as to improve the overall response time of transaction systems running on one or more host computer and accessing data on disk via the CU.

REFERENCES:
patent: 4415970 (1983-11-01), Swenson et al.
patent: 5687347 (1997-11-01), Omura et al.
patent: 6438647 (2002-08-01), Nielson et al.
patent: 6507896 (2003-01-01), Sanada et al.

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