SUITABLE REGION DIVIDING METHOD FOR CASH MEMORY

Title:

SUITABLE REGION DIVIDING METHOD FOR CASH MEMORY

Document Type and Number:

Japanese Patent JPS58161060

Kind Code:

A

Abstract:

A host computer (10) is backed up by magnetic disk stores (14) which may be of different types having different track lengths. The host computer is conventionally coupled to the disk stores by channels (12), a storage director (16) and disk control modules (18). A solid-state cache memory array (22) with an associated cache manager (22) are connected to the storage director for storing tracks of data likely to be required by the host computer. In order to provide efficient utilisation of the cache memory array (22) it is arranged in domains having a length which is substantially an integral multiple of all the different track lengths, The domains are assigned to the different classes of disk storage devices (14) and reallocation is effected from time to time on the basis of actual usage.

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Inventors:

RICHIYAADO ERU KUURUSON
RONARUDO ERU BURITSUKENSUTATSU
PII DEEBITSUDO DOTSUDO
ROBAATO JIEI MORENO
DEIIN PII KINAADO

Application Number:

JP20838182A

Publication Date:

September 24, 1983

Filing Date:

November 27, 1982

Export Citation:

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Assignee:

STORAGE TECHNOLOGY CORP

International Classes:

G06F3/06; G06F12/08; (IPC1-7): G06F13/00; G11C9/06

Domestic Patent References:

JPS55157054A	1980-12-06
JPS5228231A	1977-03-03

Attorney, Agent or Firm:

Kyozo Yuasa

Previous Patent: JPS58161059

Next Patent: SELF-CONTROLLING METHOD AND DEVICE OF DISTRIBUTED PRIORITY COMPETITION