Logical unit numbers (LUNs) Storage units Volumes

Storage devices assign the LUN to a storage unit, such as a logical volume. The LUN provides a unique address or identifier for the logical volume.

Device Manager provides interconnections between managed objects and LUNs. For example, Device Manager provides the association between a virtual LUN and a managed LUN in a SAN Volume Controller. By examining the LUNs being used by each device and matching worldwide nodes, the Device Manager creates associations between the managed objects that represent the storage device and the LUNs. This association enables you to view the interconnection relationships.

Note:Note: LUNs are identified in the Multiple Device Manager (MDM) interface by the label volume ID. The identification number is consistent with whatever convention is used in the native application. For example, an IBM TotalStorage Enterprise Storage Server volume ID is identified by four hex characters (0 - 9 or uppercase A - F). For an IBM TotalStorage FAStT Storage Server, the volume ID is shown as LUN number.
Related topics Storage units Volumes

(C) Copyright International Business Machines Corporation 2004