Data access control for disk system using a limit value and coun

Details Data access control for disk system using a limit value and coun Data access control for disk system using a limit value and coun

1997-09-08

2000-01-25

Chan, Eddie P.

Electrical computers and digital processing systems: memory

Storage accessing and control

Specific memory composition

711137, G06F 1208

Patent

active

060187883

ABSTRACT:
A disk controller (HDC) reads requested data from a disk in accordance with a read command from a host system, and stores the data in a buffer memory. The HDC reads successive data, together with the requested data, and stores the data in the buffer memory. When a repeat access request is issued from the host system, the HDC temporarily stops disk access which has been continued. A CPU determines the amount of data stored in the buffer memory by disk access on the basis of a limit value set in a limit register. The HDC reads requested data corresponding to the repeat access request from the buffer memory and transfers the data to the host system.

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patent: 5623608 (1997-04-01), Ng
patent: 5727232 (1998-03-01), Iida et al.
patent: 5758191 (1998-05-01), Kasebayashi et al.

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