Patent ID: 7467234
Filing Date: 2008-12-16
Classification: G06F,Y10S

Abstract:
1. A computer system comprising: a first computer; a plurality of storage systems serially linked to the first computer; and a second computer linked to at least one of the plurality of storage systems, wherein each of the plurality of storage systems includes at least one storage area for storing data, wherein there is established at least one copy pair which is a combination of two storage areas among a plurality of storage areas belonging to the plurality of storage systems, copying of data being to be carried out among the two storage areas of the copy pair, wherein the first computer has stored in advance therein system pair information including copy pair information that defines the copy pair, wherein each of the storage systems stores sub system pair information including copy pair information that defines a copy pair in which at least one of the two storage areas making up the copy pair is a storage area within the storage system in question, wherein the second computer includes: wherein during the generation of system pair information by the second computer, the sub system selector initially selects a storage system directly linked to the second computer, and after performing initial acquisition of sub system pair information by means of the sub system pair information acquirer, sequentially selects a storage system to be accessed, based on the acquired sub system pair information.