Patent ID: 7062629

Claim:
A storage system, comprising: a disk array system comprising: a port receiving data sent from a first information processing device; a first controller transferring data received by said port; a memory storing data in accordance with transferring by said first controller; a second controller transferring data stored in said memory; a disk drive group storing data transferred by said second controller and having a plurality of disk drives; a logical unit being an address to which data is sent from said first information processing device and corresponding to a storage region in said disk drive group; a plurality of resource groups each having a plural kinds of resources among said port, a part or all of said first controller, a part or all of said memory, a part or all of said second controller, said disk drive group and said logical unit; and a second information processing device coupled to said disk array system and displaying first information of said plural kinds of resources in a first resource group of said resource groups and not displaying second information of said plural kinds of resources in a second resource group of said resource groups; wherein, in order to change configuration in a first resource group of said resource groups, said disk array system permits to change from a first state of relating between a first resource and a second resource in said first resource group into a second state of relating between said first resource and a third resource in said first resource group and does not permit to change from said first state into a third state of relating between said first resource and a fourth resource in said second resource group.