How do you map a LUN to a host in NetApp ONTAP?

• A. Create a LUN in a volume and map it to a host or host group using the appropriate initiator group (igroups) mapping.
• B. Create an SMB share and assign permissions.
• C. Use a volume export policy with an allowed client list.
• D. Assign a CIFS credentials to the LUN.

Answer: (A)

In ONTAP, presenting a LUN to a host happens through an initiator group. You create the LUN inside a volume, then map that LUN to an igroup that contains the host’s initiators (IQNs for iSCSI or WWPNs for FC). Once the LUN is associated with the igroup, the host in that group can see and access the LUN as a block device. The other options involve file-level access (SMB/Windows shares) or export policies for file services, not block LUN presentation, so they don’t apply to LUN mapping.