Magnetic disk subsystem with failsafe battery charging and power

Details Magnetic disk subsystem with failsafe battery charging and power Magnetic disk subsystem with failsafe battery charging and power

1996-06-05

1997-10-07

Harvey, Jack B.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 48, 369243, G06F 1100, G06F 1200

Patent

active

056758162

ABSTRACT:
A magnetic disk apparatus which is used as a subsystem of a computer system, in particular a medium-sized computer system which uses commercial power and does not have its own backup power, provided with a plurality of directors (118), a plurality of magnetic disk modules (148) commonly accessed from the plurality of directors, a plurality of director batteries (114-m) for supplying power individually to the plurality of directors, magnetic disk module batteries (114-n) for supplying power to the magnetic disk modules, and a power controller (110) for independently controlling the supply of power from the plurality of director batteries and magnetic disk module batteries in accordance with the operating state of the plurality of directors and magnetic disk modules. (FIG. 1).

REFERENCES:
patent: 4279020 (1981-07-01), Christian et al.
patent: 4365290 (1982-12-01), Nelms et al.
patent: 5317752 (1994-05-01), Jewett et al.
patent: 5325488 (1994-06-01), Carteau et al.
patent: 5341493 (1994-08-01), Yanai et al.

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