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System and method for recoverable mirroring in a storage environment employing asymmetric distributed block virtualization
System and method for recoverable mirroring in a storage environment employing asymmetric distributed block virtualization
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机译:使用非对称分布式块虚拟化的存储环境中可恢复镜像的系统和方法
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摘要
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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