Verification should confirm actual FC logins at both the fabric and ONTAP layers. On Cisco switches, show flogi database displays devices that have successfully completed Fabric Login, enabling the engineer to confirm host and storage WWPN presence within the fabric. On ONTAP, vserver fcp initiator show displays FCP initiators that are currently logged in and identifies their associated SVM, LIF, WWPN, and igroup information. Together, these commands validate end-to-end client connectivity. show zoneset active confirms the currently activated zoning configuration but does not prove that every initiator has successfully logged in. vserver fcp portname show concerns target port-name information rather than currently connected initiators. Relevant SAN ONTAP topics include FLOGI, FC logins, initiator WWPNs, FCP LIFs, zoning validation, and redundant fabric troubleshooting.