content_image/985653.jpg content_image/985654.jpg
Figure 8-1 depicts the five WWPNs that are associated with a SAN Volume Controller port when NPIV is enabled. 

<img src='content_image/985653.jpg'>

The failover host attach  ports are not currently active. Figure 8-2 shows what happens when the partner node fails. After the node failure, the failover host attach ports  on the remaining node become active and take on the WWPN of the failed node’s primary host attach port . 

Note:  Figure 8-2 shows only two ports per node in detail, but the same details apply to all physical ports. The effect is the same for NVMe ports because they use the same NPIV structure, but with the topology NVMe instead of regular SCSI. 

<img src='content_image/985654.jpg'>

