Disk array unit

Details Disk array unit Disk array unit

2005-09-20

2005-09-20

Sniezek, Andrew L. (Department: 2651)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

C713S324000, C711S114000

Reexamination Certificate

active

06947240

ABSTRACT:
A disk array unit connected to a host unit to give information thereto and receive information therefrom. The disk unit includes a plurality of disk units for storing information transmitted from the host unit and a management information recording device, formed by utilizing information storage areas in the disk units, for causing information relating to a logical unit for storing information from the host unit to correspond to information relating to the units. The invention further includes a control unit, when there is no access from the host unit to the logical unit for a predetermined time, for determining the disk units corresponding to the logical unit based on information recorded in the management information recording device and performing power saving of power supply for the disk units.

REFERENCES:
patent: 5361364 (1994-11-01), Nagashige et al.
patent: 5828568 (1998-10-01), Sunakawa et al.
patent: 5926404 (1999-07-01), Zeller et al.
patent: 5937433 (1999-08-01), Lee et al.
patent: 6052791 (2000-04-01), Chen et al.
patent: 6192481 (2001-02-01), Deenadhayalan et al.
patent: 6233691 (2001-05-01), Atkinson
patent: 6583947 (2003-06-01), Hakamata et al.
patent: 7302138 (1995-11-01), None

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