Patent ID: 8307242
Filing Date: 2012-11-06
Classification: G06F

Abstract:
1. A server change-over method in a management server to manage accesses of a plurality of server apparatuses and a memory device in a storage apparatus, wherein the plurality of server apparatuses include an active server and one or more standby servers, and the method comprises the following steps performed by the management server: storing in a memory unit change-over strategy information associating apparatus information related to the server apparatuses with change-over methods defining how to change over from one of the server apparatuses to another server apparatus in access of the memory device in the storage apparatus and priorities of the change-over methods; getting from the memory unit first apparatus information which is the apparatus information for the active server previously stored in the memory unit; getting at least one change-over method for the active server from the change-over strategy information in the memory unit on the basis of the gotten first apparatus information; getting a second apparatus information for the one or more standby servers from the memory unit; selecting one of the one or more standby servers which is enabled to execute a change-over method having a highest priority from among the gotten at least one change-over method based on the second apparatus information; and changing over access of the storage apparatus from the active server to the selected standby server in accordance with the change-over method having the highest priority.