System for protecting newly installed disk units

Details System for protecting newly installed disk units System for protecting newly installed disk units

1986-12-09

1988-07-19

Cardillo, Raymond F.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360105, G11B 554, G11B 2112, G06F 1310

Patent

active

047589140

ABSTRACT:
A fixed disk protection system for causing a head to seek for a CSS (contact-start-stop) zone at the time of power breaking is provided, which comprises a CSS zone discriminating section for receiving the type information of a fixed disk unit from a central processing unit and discriminating the position of the CSS zone at the time of power making, a power breaking request signal detecting section for detecting a power breaking request signal given from a power supply at the time of power breaking, a head seek commanding section for referring to a CSS zone memory section and issuing a command of causing the head to seek for the given CSS zone after the power breaking request signal has been detected, and a power breaking commanding section for sending a power breaking signal to the power supply after seeking for the given CSS zone has been terminated, whereby different types of fixed disks can be handled by causing the head to seek for the given CSS zone on the basis of the discriminated results of the CSS zone discriminating section.

REFERENCES:
patent: 4041469 (1977-08-01), Jennings
patent: 4237501 (1980-12-01), Barmache et al.
patent: 4566046 (1986-01-01), Fujiki et al.
patent: 4679102 (1987-07-01), Wevers et al.

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