Patent ID: 7457916
Filing Date: 2008-11-25
Classification: G06F

Abstract:
1. A storage system comprising; a plurality of disk array devices connected through a network to at least one host for running a plurality of applications and each disk array device having a plurality of physical disks a plurality of logical volumes relating to said physical disks, a cache memory temporarily storing data sent from the host to the logical volumes, and a controller to transfer data to the physical disks via the cache memory: and a management server configured to monitor said disk array devices, said management server being connected to said host and said disk array devices, and to communicate management information to said host and said disk array devices, wherein said disk array devices include a physical disk error detecting unit configured to detect an error in a physical disk of said physical disks: wherein said management server stores the management information including a corresponding relationship among identification of each of said applications, identification of at least one logical volumes used by said each application, and identification of at least one of said physical disks corresponding to said at least one logical volume, and wherein said management server includes an application detecting unit configured, when said physical disk error detecting unit of said disk array devices identifies an error in said physical disk, to detect said application using said logical volume corresponding to said physical disk, with the error according to said corresponding relationship stored in said management server.