Inventors:
Ronald S. Karr - Sunnyvale CA, US
Kalaivani Arumugham - Sunnyvale CA, US
John A. Colgrove - Los Altos CA, US
Poonam Dhavale - Sunnyvale CA, US
Assignee:
Symantec Operating Corporation - Cupertino CA
International Classification:
G06F 11/00
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.