Disk drive array system having internal synchronization and exte

Details Disk drive array system having internal synchronization and exte Disk drive array system having internal synchronization and exte

1992-07-08

1996-03-05

Sniezek, Andrew L.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the record

360 7302, 364 47, 364 50, G11B 1546

Patent

active

054972760

ABSTRACT:
A disk drive array system includes a plurality of disk drives. Each disk drive includes a period detector for monitoring the period of a common external synchronizing signal. When the period detector determines the existence of an irregularity in the external synchronizing signal, an internal synchronizing signal, generated by an internal generator, is used for controlling the rotation of each of the disks so as to continue the operation of the disks.

REFERENCES:
patent: 4811126 (1989-03-01), Suzuki et al.
patent: 4890045 (1989-12-01), Ishizuka
patent: 5089900 (1992-02-01), Yokogawa
patent: 5237466 (1993-08-01), Glaser et al.
patent: 5289448 (1994-02-01), Sato

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