Patent ID: 7409605

Claim:
A storage system comprising: a host computer; and a storage unit providing a memory area to said host computer, wherein said host computer includes a failure management section for managing a failure in said host computer, a service processor for executing maintenance and management of said host computer and failure management using said failure management section of said host computer, and a processing node for controlling said host computer to communicate with said storage unit, said storage unit includes a failure management section for managing a failure of said storage unit, and a service processor for executing maintenance and management of said storage unit and failure management using said failure management section of said storage unit, said failure management section of said host computer and said failure management section of said storage unit are connected through a failure reporting interface, and when a failure occurs in said storage unit, (1) the processing node detects a timeout of said storage unit lasting for a specified time and sends out timeout information including timeout parts to said failure management section of said host computer while (2) failure information of a failed part is notified from said failure management section of said storage unit to said failure management section of said host computer through said failure reporting interface, and said failure management section of said host computer deletes each timeout part from said timeout information detected by software in said host computer that is not included in the failure information from said storage unit such that management of the failure information in said storage system is unified by said service processor of said host computer.