Patent ID: 7363446
Filing Date: 2008-04-22
Classification: G06F,H04L,Y10S

Abstract:
1. A virtualization system, comprising: a first storage system having a first storage controller, a plurality of first disk drives and a first logical volume related to at least one of said first disk drives; a first virtualization device having a first virtual volume related to the first logical volume of the first storage system; a second storage system having a second storage controller, a plurality of second disk drives and a second logical volume related to at least one of said second disk drives; and a second virtualization device having a second virtual volume related to the second logical volume of the second storage system, wherein the first and second virtualization devices are adapted to configure to copy data between the first and second virtual volumes, and the first and second storage systems are adaptive to configure to copy data between the first and second logical volumes, and after the first virtualization device confirms that both of the first and second storage systems support logical volume copying function and the second virtualization device acquires mapping information for loading the second logical volume operating as the second virtual volume, then the first storage system instructs copying data from the first logical volume to the second logical volume.