text: – N_Port ID Virtualization (NPIV) 
  
  The NPIV allows a single physical HBA to register multiple virtual WWPNs. With NPIV, 
  you can configure the managed system so that multiple partitions can access 
  independent physical storage through the same physical Fibre Channel adapter. 
  
  Each client partition is configured with four Virtual Fibre Channel adapters: two are 
  mapped to Virtual Fibre Channel adapters on one VIOS and the other two are mapped 
  to Virtual Fibre Channel adapters on the other VIOS. The client has WWPNs, four 
  active and four inactive (used only during LPM operations). 
  
  For client VMs to see same storage from all these ports, zoning must be done on the 
  SAN. Multi-path software on the client VM takes care of routing IO through passive 
  path if the active path fails. The NPIV is recommended for production environments. 