Patent ID: 7669077

Claim:
A method of a management server for managing failure information in a system, which includes at least one storage device equipped with a real volume, a virtualization device coupled to said at least one storage device and managing said real volume of said at least one storage device as a virtual volume, and the management server coupled to said at least one storage device and said virtualization device; the method comprising: a management step of managing a virtual mapping relation including said virtual volume and a first port of said virtualization device on an access path from a computer to said virtual volume, and a real mapping relation including said real volume provided as said virtual volume and a second port of said storage device on a connection path from a computer to said real volume, and an association between said virtual mapping relation and said real mapping relation; a failure notification step of receiving a plurality of failure notifications from said at least one storage device and said virtualization device at which a failure is detected; a detection step of detecting a first failure notification, which notifies a failure of at least one element in said virtual mapping relation, from said plurality of failure notifications, and a second failure notification, which notifies a failure of at least one element in said real mapping relation, from said plurality of failure notifications; an associating step of associating said first failure notification with said second failure notification based on said association between said virtual mapping relation and said real mapping relation; and a failure message outputting step of outputting results of said associating step, in which said first failure notification and second failure notification are associated with a particular cause.