You can use the Provision Storage Wizard in Share and Storage Management to create logical unit numbers (LUNs) on Fibre Channel and iSCSI disk drive subsystems that are connected to your server. You can then assign the LUN to your server or to other servers on the network. While creating the LUN, you can also create a volume on that LUN and format it.

A LUN is a logical reference to a portion of a storage subsystem. A LUN can comprise a disk, a section of a disk, a whole disk array, or a section of a disk array in the subsystem. Using LUNs simplifies the management of storage resources because they serve as logical identifiers through which you can assign access and control privileges.

To provision a LUN on a disk storage subsystem, you need to first verify that all the following requirements are met:

Membership in Administrators, or equivalent, is the minimum required to complete this procedure. Review details about using the appropriate accounts and group memberships at

To provision storage
  1. In the Actions pane, click Provision Storage.

  2. On the Storage Source page, select the On a storage subsystem option, and click Next.

  3. Follow the steps in the wizard to create and configure the LUN.

Additional considerations

  • If there are no disk storage subsystems connected to your server, the VDS hardware providers are not installed, or there is no storage space available in any of the subsystems, the On a storage subsystem option in the Provision Storage Wizard will not be available.

  • If you create a LUN but do not create a volume on it, you can use Disk Management to create the volume later.

  • To open Share and Storage Management, click Start, point to Administrative Tools, and then click Share and Storage Management.

Additional references