Patent ID: 6330621
Filing Date: 2001-12-11
Classification: G06F

Abstract:
A data storage manager operational in a data storage subsystem that uses a plurality of data storage elements to store data thereon for a plurality of host processors that are connected to said data storage subsystem, comprising:means for storing a set of logical data storage device definitions that are created from said plurality of data storage elements;means for identifying a set of data storage characteristics appropriate for a present data object;means for comparing said identified set of data storage characteristics with said stored set of logical data storage device definitions;means, responsive to a failure to match said identified set of data storage characteristics with a single one of said stored set of logical data storage device definitions, for creating a new logical device definition using a plurality of said stored set of logical data storage device definitions, wherein said means for creating comprises means for assigning weighted values to each of the presently defined logical devices to produce a best fit solution to the requested policies in an n-dimensional best fit matching algorithm; andmeans for storing said present data object on interconnected ones of said plurality of data storage elements that correspond to said new logical device definition.