text: Figure 8-2 Allocation of NPIV virtual WWPN ports per physical port after a node failure 
  
  With V7.7 onwards, this process happens automatically when NPIV is enabled at a system 
  level in Storwize V7000. This failover happens only between the two nodes in the same I/O 
  Group. 
  
  A transitional mode allows migration of hosts from previous non-NPIV enabled systems to 
  enabled NPIV system, allowing for a transition period as hosts are rezoned to the*primary*
  host attach WWPNs. 
  
  The process for enabling NPIV on a new IBM Storwize V7000 system is slightly different than 
  on an existing system. For more information, see IBM Knowledge Center. 
  
  **Note:**NPIV is supported for Fibre Channel protocol only. It is*not*supported for FCoE or 
  iSCSI protocols. 