Computer graphics processing and selective visual display system – Computer graphic processing system – Interface
Reexamination Certificate
2006-09-29
2010-12-07
Nguyen, Hau H (Department: 2628)
Computer graphics processing and selective visual display system
Computer graphic processing system
Interface
C345S531000, C345S532000, C345S536000, C345S537000
Reexamination Certificate
active
07847801
ABSTRACT:
A computer implemented method, apparatus, and computer usable program code are provided for managing dual active controllers in a high availability storage configuration. Redundant dual active controllers in high availability storage configurations are made to appear as individual storage target devices to a host system. Each controller owns certain volumes of data storage. When a host system sends a request to identify available data volumes, the controller that owns certain volumes provides preferred paths to those owned volumes. The host system may also send an inquiry to a controller that asks the controller about data volumes not owned by the controller. For such inquiries, no paths to the non-owned data volumes are returned to the host system.
REFERENCES:
patent: 5790775 (1998-08-01), Marks et al.
patent: 6763455 (2004-07-01), Hall
patent: 7328324 (2008-02-01), Wang et al.
LSI Corporation
Nguyen Hau H
Yee & Associates P.C.
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