Electrical computers and digital data processing systems: input/ – Input/output data processing – Peripheral adapting
Reexamination Certificate
2005-08-02
2005-08-02
Huynh, Kim (Department: 2182)
Electrical computers and digital data processing systems: input/
Input/output data processing
Peripheral adapting
C710S005000, C711S114000
Reexamination Certificate
active
06925511
ABSTRACT:
A disk array control apparatus includes a plurality of disk array control units for controlling data transfer between a plurality of host computers and a plurality of magnetic disk devices via a channel interface and a disk interface. The apparatus also includes an interconnection network for connection between shared memory portions in the plurality of disk array control units and an interconnection network for connection between cache memories in the disk array control units so as to transfer control information concerning data transfer between the host computers and cache memories and management information of the magnetic disk devices from one of the disk array control units to another of disk array control units. This enables to execute data processing while data transfer is performed from one of the disk array control units to another thereof.
REFERENCES:
patent: 5636359 (1997-06-01), Beardsley et al.
patent: 5680640 (1997-10-01), Ofek et al.
patent: 5937174 (1999-08-01), Weber
patent: 6601138 (2003-07-01), Otterness et al.
patent: 2000-99272 (2000-04-01), None
Hitachi , Ltd.
Huynh Kim
Townsend and Townsend / and Crew LLP
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