ESXi datastores are unavailable after network switch migration Last updated Save as PDF Share Share Tweet Share Views:191Visibility:PublicVotes:2Category:ontap-9Specialty:SANLast Updated: Applies to Data ONTAP 9 iSCSI NAS VMware Issue After migrating to a new Nexus 5K switch the ESXi hosts lost connectivity to their LUNs or NAS Volumes. Datastores show unavailable.