Power backup method for disk storage device

Dynamic information storage or retrieval – Condition indicating – monitoring – or testing – Including radiation storage or retrieval

Reexamination Certificate

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Details

C369S243000, C307S018000, C714S014000, C700S286000, C713S321000

Reexamination Certificate

active

07548502

ABSTRACT:
HDD boxes831to83nare each incorporated with a secondary battery box87, a non-isolated DC/DC converter89, and an HDD91. Logical circuit boards851to85nare each incorporated with the secondary battery box87, fast-transient-response-type non-isolated DC/DC converters931to933, and a plurality of loads951to953. Every secondary battery box87is provided with a charge/discharge circuit97, and a plurality of in-line secondary batteries99. In the HDD box, the output voltage from the secondary battery box87goes to an HDD91via the DC/DC converter89. In the logical circuit board, the output voltage from the secondary battery box87goes to the corresponding loads951to953via the DC/DC converters931to933. With such a structure, in a disk array apparatus, realized are higher energy efficiency and less space occupation through reducing power loss and optimizing power capacity setting for a backup power.

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