Patent ID: 7610465
Filing Date: 2009-10-27
Classification: G06F

Abstract:
1. A method for data migration of a disk array, the disk array comprising a source disk and at least a member disk, and a total number of the disks in the disk array equaling to N, the method utilized to separately store a data to be migrated from the source disk into each disk of the disk array, the method comprising: dividing the data to be migrated into a plurality of data stripes; dividing the plurality of data stripes of the source disk into a plurality of zones, wherein a number of data stripes of a first zone Z( performing a data migration operation on data stripes of a one zone of the plurality of zones from the source disk to all disks in the disk array including the source disk and the at least one member disk, wherein the one zone corresponds to an initial data; and updating the initial data with an initial address of a next zone immediately following after the one zone only when the data stripes of the one zone are completely migrated, wherein the data migration operation of the data stripes of the first zone Z(