Patent ID: 7707377
Filing Date: 2010-04-27
Classification: G06F

Abstract:
1. A storage system, comprising: a first storage device coupled to a first information processing device and having a first disk controller and a plurality of first disk drives, said first disk controller forming a first logical volume related to a first portion of said first disk drives and forming a second logical volume related to a second portion of said first disk drives; and a second storage device coupled to said first storage device and having a second disk controller and a plurality of second disk drives, said second disk controller forming a third logical volume related to a third portion of said second disk drives and forming a fourth logical volume related to a fourth portion of said second disk drives; wherein said first disk controller and said second disk controller manage functions of said first logical volume, said second logical volume, said third logical volume and said fourth logical volume, wherein said first disk controller and said second disk controller perform a first remote copy process according to a first status in which wherein said first disk controller and said second disk controller perform a second remote copy process according to a second status in which wherein said first disk controller and said second disk controller are changed from said first status to said second status based on one or more commands.