Patent ID: 9026751
Filing Date: 2015-05-05
Classification: G06F

Abstract:
1. A management computer for a computer system, the computer system including a storage apparatus and a host computer on which a virtual server operates, the storage apparatus including a plurality of physical volumes, wherein data is copied between the physical volumes according to a pair definition, and the host computer forming a volume group from a physical volume, of the plurality of physical volumes, to create a logical volume for the virtual server, wherein the volume group is a set of volumes that is a target of a backup, said management computer comprising: a memory storing a management program; and a CPU (Central Processing Unit) executing the management program to: (A) acquire an identifier (ID) of a backup target virtual server, and acquire backup policy information of the backup target virtual server, (B) identify a first logical volume used by the backup target virtual server, (C) identify a first volume group to which the first logical volume belongs, (D) determine whether or not a second volume group exists, the second volume group having a same backup policy as the acquired backup policy information, wherein data of a second physical volume from which the second volume group is formed, is copied to a first physical volume forming a pair with the second physical volume according to the same backup policy, (E) determine whether or not a first another virtual server exists, the first another virtual server using a second logical volume in the first volume group, and (F) if the first another virtual server of (E) and the second volume group of (D) exist, migrate the first logical volume from the first volume group the second volume group, wherein a backup policy for all virtual servers using logical volumes belonging to a volume group is applied to the volume group.