| 摘要 |
PROBLEM TO BE SOLVED: To provide a data migration method suitable for SAN(Storage Area Network) environment and its device. SOLUTION: A disk device at migration destination is connected with a switch in which a host is connected with a disk device at a migration origin. AT this memory, the same value as that of a port ID provided to an F-Port of the switch is provided to a port ID of the disk device at the migration destination and the disk device at the migration destination is made not to be recognized by the host 101. The disk information at the migration destination reads the constitutional information on the disk device at the migration origin. After that, a physical port ID 602 of the disk device 103 at the migration origin is replaced with the physical port ID 602 of the disk device 104 at the migration destination in the switch. The disk device at the migration destination constructs volume according to a logical volume number on the disk device at the migration original and the size of the volume and sores data in the disk device at the migration origin in corresponding volume.
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