Patent ID: 7689790
Filing Date: 2010-03-30
Classification: G06F

Abstract:
1. A computer system comprising: a first computer; a second computer; a first storage system coupled to said first computer and having a first logical volume for storing first data received from said first computer; a second storage system coupled to said second computer and having a second logical volume for storing second data received from said first computer; a third storage system receiving said first data from said first storage system and having a third logical volume for storing replication data of said first data; and a fourth storage system receiving said second data from said second storage system and having a fourth logical volume for storing replication data of said second data; wherein said second computer is coupled to said third storage system, wherein said second computer manages a first copy pair of said first logical volume and said third logical volume and a second copy pair of said second logical volume and said fourth logical volume, transmits a group control instruction to said third storage system for controlling a replication process by using said first copy pair and said second copy pair as a copy group, and wherein, in response to said group control instruction, said third storage system transmits a replication status inquiry to said first storage system and said second storage system, said replication status inquiry inquiring about a status of said replication process, and manages a status of said copy group in accordance with said status of said replication process.