Disk array system and method for controlling disk array system

Dynamic information storage or retrieval – Information location or remote operator actuated control – Selective addressing of storage medium

Reexamination Certificate

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C369S030380, C369S030580, C714S006130, C714S043000, C711S114000

Reexamination Certificate

active

11024644

ABSTRACT:
A disk array system having first and second housings and a controller for controlling the first and second housings. Fiber channel hard disk drives are received in the first housing, and serial ATA hard disk drives are received in the second housing. When reading data stored in a serial ATA hard disk drive in the second housing, the controller reads a plurality of pieces of data including the data to be read and parity data for the plurality of pieces of data from all the hard disk drives of an RAID group to which the hard disk drive storing the data to be read belongs. Thus, the controller examines whether the plurality of pieces of data including the data to be read are written in the hard disk drives with erroneous contents or not.

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SGI InfiniteStorage TP9300S Storage Array, Data Sheet, 2 pp., available at: http://www.sgi.com/pdfs/3643.pdf.
Adaptec FS4500 Fibre to SATA RAID, Data Sheet, 2 pp., available at: http:/www.sunstarco.com/PDF%20Files/Adaptec%20FS4500%20SATA.pd

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