Storage subsystem that connects fiber channel and supports...

Details Storage subsystem that connects fiber channel and supports... Storage subsystem that connects fiber channel and supports...

2005-02-01

2005-02-01

Bataille, Pierre (Department: 2186)

Electrical computers and digital processing systems: memory

Storage accessing and control

Specific memory composition

C711S162000, C714S006130

Reexamination Certificate

active

06851020

ABSTRACT:
A disk array connected to a storage area network via a fiber channel has one or more ports each controlled by a processor. Even the disk array with one port and one processor executes online processing and backup processing at the same time while considering an online processing load. A port controller not only accepts a request from a host computer but issues a request to other storage controllers to allow online processing and backup processing to be executed at the same time. In addition, the disk array, if provided with a plurality of ports, selects ports or schedules processing depending upon the load to prevent backup processing from affecting online processing performance.

REFERENCES:
patent: 6000020 (1999-12-01), Chin et al.
patent: 6219753 (2001-04-01), Richardson
patent: 6304980 (2001-10-01), Beardsley et al.
patent: 6332198 (2001-12-01), Simons et al.
patent: 6665812 (2003-12-01), Blumenau et al.
patent: 6694450 (2004-02-01), Kidder et al.
patent: 6697960 (2004-02-01), Clark et al.
patent: 6290002 (1994-10-01), None

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