A method of creating a logical data volume in a consolidated storage array which satisfies performance requirements for the logical data volume, {HEAD ~ the CSA} comprising {TAIL ~ a plurality} of storage arrays, each of the storage arrays having performance capabilities, the performance requirements for the logical data volume exceeding available performance capabilities of any single storage array, the CSA being connected to a host device executing data access software which uses the logical data volume, comprising the steps performed by the CSA of: 
comprising
A method of creating a logical data volume in a consolidated storage array which satisfies performance requirements for the logical data volume , { HEAD ~ the CSA } comprising { TAIL ~ a plurality } of storage arrays , each of the storage arrays having performance capabilities , the performance requirements for the logical data volume exceeding available performance capabilities of any single storage array , the CSA being connected to a host device executing data access software which uses the logical data volume , comprising the steps performed by the CSA of :
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