vsphere-esxi-vcenter-server-55-storage-guide

Chapter 4 Configuring Fibre Channel StoragePrerequisitesCreate a virtual machine with an RDM disk. See “Create Virtual Machines with RDMs in the vSphere WebClient,” on page 160.Procedure1 In the vSphere Web Client, browse to the virtual machine.2 Right-click the virtual machine and select Edit Settings.3 Click VM Options.4 Click the Fibre Channel NPIV triangle to expand the NPIV options.5 Deselect the Temporarily Disable NPIV for this virtual machine check box.6 Select Generate new WWNs.7 Specify the number of WWNNs and WWPNs.A minimum of 2 WWPNs are needed to support failover with NPIV. Typically only 1 WWNN iscreated for each virtual machine.The host creates WWN assignments for the virtual machine.What to do nextRegister newly created WWNs in the fabric so that the virtual machine is able to log in to the switch, andassign storage LUNs to the WWNs.Modify WWN AssignmentsYou can modify WWN assignments for a virtual machine with an RDM.Typically, you do not need to change existing WWN assignments on your virtual machine. In certaincircumstances, for example, when manually assigned WWNs are causing conflicts on the SAN, you mightneed to change or remove WWNs.PrerequisitesMake sure to power off the virtual machine if you want to edit the existing WWNs.Before you begin, ensure that your SAN administrator has provisioned the storage LUN ACL to allow thevirtual machine’s ESXi host to access it.Procedure1 Open the Virtual Machine Properties dialog box by clicking the Edit Settings link for the selectedvirtual machine.2 Click the Options tab and select Fibre Channel NPIV.The Virtual Machine Properties dialog box opens.3 Edit the WWN assignments by selecting one of the following options:OptionTemporarily disable NPIV for thisvirtual machineLeave unchangedDescriptionDisable the WWN assignments for the virtual machine.The existing WWN assignments are retained. The read-only WWNAssignments section of this dialog box displays the node and port valuesof any existing WWN assignments.VMware, Inc. 43