Patent ID: 7069408
Filing Date: 2006-06-27
Classification: G06F

Abstract:
1. A disk array system, comprising: a port receiving data from an information processing device; a first controller transferring data received by said port; a memory storing data in accordance with the transferring performed by said first controller; a second controller transferring data stored in said memory; a plurality of disk drive groups to which data transferred by said second controller is stored and having a plurality of storage regions in a plurality of disk drives; a plurality of logical units being addresses to which data is sent from said information processing device and corresponding to said storage regions; and a plurality of resource groups each having a first plural kinds of resources among said ports, said first controller, said memory, said second controller, said disk drive groups, and said logical units, wherein, in order to change configuration in a first resource group of said resource groups, a first resource in said first resource group is permitted to change from a first state of relating to a second resource in said first resource group into a second state of relating to a third resource in said first resource group without being permitted to change to a third state of relating to a fourth resource in a second resource group of said resource groups.