Patent ID: 8307178
Filing Date: 2012-11-06
Classification: G06F

Abstract:
1. A computer system comprising: a first computer; a second computer; a plurality of primary storage systems coupled to the first computer and the second computer, and each primary storage system including a logical volume for storing data received from the first computer; and a plurality of secondary storage systems coupled to the first computer and the second computer, and each secondary storage system including a logical volume for storing replication data of a logical volume of a primary storage system, wherein the second computer manages copy pairs of a part of the logical volumes of the primary storage systems and a part of the logical volumes of the secondary storage systems, and transmits a group control instruction to the secondary storage systems for controlling a replication process by using the copy pairs as a copy group, wherein each primary storage system receives write data from the first computer, and the primary storage system transmits the write data to a secondary storage system, the second computer acquires a copy status from the secondary storage system, and the secondary storage system executes an initializing process, and wherein, if the copy status is a duplex status in which logical contents are coincident, a latest data reflection time managed by volume set management information for the secondary storage system and a container time of the copy group are coincident, and the initializing process is completed, then the second computer judges that integrity of the write data is established.