Cisco MDS and Emulex Virtual HBA Solutions for VMware Infrastructure 3. A Technology Overview for SAN Connectivity using NPIV in a VMware ESX Server 3.5 Environment. This co-authored technology overview provides data center users with valuable information for understanding the benefits of NPIV technology in a VMware environment and practical use cases and deployment scenarios for maximizing these benefits. This guide is intended to introduce the concepts of NPIV in a VMware environment, using Emulex and Cisco products. General use cases are presented and possible benefits are mentioned. Actual customer configurations can vary widely along with results, and these deployment scenarios may not be possible or practical in any given case. Please consult with your Cisco, Emulex and VMware representative on specific questions based on your specific needs.