Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Masafumi Nozawa0
Takayuki Kashima0
Kyosuke Achiwa0
Date of Patent
May 11, 2010
0Patent Application Number
113417200
Date Filed
January 30, 2006
0Patent Primary Examiner
Patent abstract
Provided is a computer system having a host computer that requests the input and output of data in and from an actual storage volume, and a plurality of storage subsystems respectively having at least one or more virtual storage volumes. The virtual storage volumes of each of the plurality of storage subsystems are virtualizations of a common external volume. The host computer sets a certain logical path among a plurality of logical paths to be respectively connected to a plurality of virtual storage volumes formed by virtualizing the common external volume as an alternate path of another logical path.
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