Patent ID: 8103766

Claim:
A method for managing logical volumes with use of a computer system including a host communicatable with a storage unit for providing logical volumes via a SAN (Storage Area Network) and with a management server unit via a LAN (Local Area Network), and for managing an operating condition regarding the logical volumes and deletable logical volumes, the method comprising the steps of: storing operation-map information as a map associated with a volume ID as an identifier of a logical volume with a predetermined operating condition; acquiring logical volume information on an operating condition of the logical volume by the management server unit from the storage unit; monitoring the operating condition regarding the logical volume in accordance with the logical volume information and notifying a changed operating condition as volume operating information; and receiving the volume operating information to update the operating condition in the operation map information in accordance with the volume operating information, and detecting that the logical volume is a deletable volume when the volume operating information indicating a predetermined operating condition is all set to a release state, among the notified volume operating information; wherein the management server unit provides deletion list information as a list of the volume ID of a deletable logical volume, wherein the volume ID of a deletable volume and the volume operating information are deleted from the operation-map information, and the volume ID of the deletable volume is added to the deletion list information, and wherein the deletable volume is deleted in response to addition of a predetermined data to the logical volume.