Method and apparatus for enhancing access to redundant data...

Details Method and apparatus for enhancing access to redundant data... Method and apparatus for enhancing access to redundant data...

2005-03-29

2005-03-29

Huynh, Kim (Department: 2182)

Electrical computers and digital data processing systems: input/

Input/output data processing

Peripheral adapting

C710S005000, C710S020000

Reexamination Certificate

active

06874046

ABSTRACT:
A dynamic address switching system for use in a data processing system with redundant data storage facilities. A validation routine or module assures that dynamic switching can occur between logical devices. A swapping routine exchanges information in unit control blocks for logical devices in the redundant system thereby to enable I/O requests from a host to be redirected over another channel to the other data storage facility.

REFERENCES:
patent: 5870537 (1999-02-01), Kern et al.
patent: 6092066 (2000-07-01), Ofek
patent: 6304980 (2001-10-01), Beardsley et al.
patent: 6484187 (2002-11-01), Kern et al.
patent: 6526419 (2003-02-01), Burton et al.

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