Method and apparatus for providing dynamic multi-pathing (DMP) for an asymmetric logical unit access (ALUA) based storage system
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United States of America Patent
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Nov 15, 2011
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Jun 14, 2007
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Jun 14, 2007
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Abstract
A method and apparatus for providing dynamic multi-pathing for an asymmetrical logical unit access (ALUA) based storage system. The method comprises identifying a first processor within a storage system as providing an optimized path to a disk array, identifying a second processor within a storage system as providing an unoptimized path to the disk array and, in response to failure of the optimized path, immediately switching from the optimized path to the unoptimized path.
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