Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability
Reexamination Certificate
2004-05-03
2008-03-04
McCarthy, Christopher (Department: 2113)
Error detection/correction and fault detection/recovery
Data processing system error or fault handling
Reliability and availability
C711S209000
Reexamination Certificate
active
07340640
ABSTRACT:
Systems and methods for performing recoverable mirroring in a storage environment employing asymmetrically distributed block virtualization. In one embodiment, the system may include a volume server, a first and a second host computer system, and a plurality of physical block devices. The volume server may be configured to aggregate storage in the plurality of physical block devices into a plurality of logical volumes, where a particular logical volume includes storage from at least two physical block devices, to make a first subset of the logical volumes available to the first host computer system for input/output, and to make a second subset of the logical volumes available to the second host computer system for input/output. The first subset and the second subset may be at least partially nonoverlapping, a given logical volume may be configured as a mirrored logical volume including a plurality of copies of a given data block.
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Arumugham Kalaivani
Colgrove John A.
Dhavale Poonam
Karr Ronald S.
Kivlin B. Noäl
McCarthy Christopher
Meyertons Hood Kivlin Kowert & Goetzel P.C.
Petro Anthony M.
Symantec Operating Corporation
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