Patent ID: 7263590
Filing Date: 2007-08-28
Classification: G06F,Y10S

Abstract:
1. A method of migrating a logical object, comprising a plurality of logically associated data elements, from at least one first storage location at which the logical object is stored to at least one second storage location, the logical object storing data accessible to an application program, the method comprising computer-implemented acts of: (A) automatically identifying the at least one first storage location at which the logical object is stored; (B) in response to the identification of the at least one first storage location in the act (A), moving the data stored within the logical object from the at least one first storage location to the at least one second storage location; (C) after completion of the act (B), automatically servicing access requests from the application program directed to the logical object from the at least one second storage location; and (D) maintaining availability of the logical object to service access requests from the application program during the act (B), wherein the method is performed in a computer system including at least one host computer and at least one storage system, wherein the at least one first storage location is provided in at least one first logical volume and the at least one second storage location is provided in at least one second logical volume, each of the logical volumes being presented by the at least one storage system to the at least one host computer and each being perceived by the at least one host computer as corresponding to a physical storage device, and wherein the act (B) includes an act of moving the data from the at least one first logical volume to the at least one second logical volume.