Search International and National Patent Collections

1. (WO2013160933) COMPUTER SYSTEM AND VIRTUAL SERVER MIGRATION CONTROL METHOD FOR COMPUTER SYSTEM

Pub. No.:    WO/2013/160933    International Application No.:    PCT/JP2012/002785
Publication Date: Fri Nov 01 00:59:59 CET 2013 International Filing Date: Tue Apr 24 01:59:59 CEST 2012
IPC: G06F 9/455
G06F 3/06
Applicants: HITACHI, LTD.
TERAYAMA, Atsumi
NAGAMI, Akihisa
TANAKA, Toru
KANEDA, Yasunori
OKAMI, Yoshinori
Inventors: TERAYAMA, Atsumi
NAGAMI, Akihisa
TANAKA, Toru
KANEDA, Yasunori
OKAMI, Yoshinori
Title: COMPUTER SYSTEM AND VIRTUAL SERVER MIGRATION CONTROL METHOD FOR COMPUTER SYSTEM
Abstract:
When migrating a virtual server between a plurality of physical servers, a pre-migration connection relationship between the virtual server and a storage area used by the virtual server is maintained after the migration of the virtual server by using a cooperative mechanism between a plurality of storage apparatuses even if the storage area used by the virtual server is migrated between the plurality of storage apparatuses. A computer system includes: a first system having a first physical server, a first storage apparatus, and a first network for connecting them; a second system having a second physical server, a second storage apparatus, and a second network for connecting them; and a management computer for managing the first system and the second system. When the management computer accepts information for designating a virtual server to be migrated from the second physical server to the first physical server, the management computer: stores a storage area used by the virtual server and specifies a migration target volume existing in the second storage apparatus; sets a migration destination volume, which is a migration destination of the migration target volume, in the first storage apparatus by associating the migration destination volume with the migration target volume by means of a cooperative function between the second storage apparatus and the first storage apparatus; specifies a connection relationship between the virtual server and the storage area stored in the migration target volume; and sets the connection relationship to the migration destination volume when migrating the virtual server from the second physical server to the first physical server.