An administrator configured an SVM with LUNs with two WWPNs per node. The administrator accidentally created a WWPN on node1 that needs to move to…

A World Wide Port Name (WWPN) is an attribute of a Fibre Channel (FC) Logical Interface (LIF). The scenario describes an FC LIF that was created on an incorrect node (node1) and needs to be moved to the correct node (node2). In ONTAP, modifying a LIF's home node or home port requires the LIF to be taken offline first using the network interface modify command with the -status-admin down parameter. Once offline, its home node can be changed, and then it can be brought back online. This action is specific to the misconfigured network path, minimizing disruption, especially in an ALUA environment where hosts can use other available paths.

B. LUN: The LUN itself is not being moved; only a network path to it is being reconfigured. Taking the LUN offline is unnecessary and would disrupt all host access.

C. SVM: Taking the entire Storage Virtual Machine (SVM) offline is excessively disruptive, as it would halt all SAN and NAS services for that SVM, not just the single misconfigured path.

D. Volume: The volume containing the LUN is not being modified. Taking the volume offline would make all LUNs and files within it inaccessible, which is not required for this task.

1. NetApp ONTAP 9.13.1 Commands: Manual Page Reference

Reference: network interface modify command documentation.

Quote/Content: "You must take the LIF offline before you can modify the -home-node

-home-port

or -is-home-true parameters." This directly states that the LIF must be taken offline to change its node assignment.

2. NetApp ONTAP 9.13.1 SAN Configuration Guide

Reference: Section: "Modify an FC LIF"

Quote/Content: The procedure for modifying an FC LIF explicitly states: "Take the LIF offline: network interface modify -vserver SVMname -lif LIFname -status-admin down". This confirms that taking the LIF offline is a required step in the documented procedure for changing its home node or port.