text: The target port mode on the I/O group indicates the current state of port virtualization: 
  
  (cid:2) Enabled: The I/O group contains virtual ports that are available to use. 
  
  (cid:2) Disabled: The I/O group does not contain any virtualized ports. 
  
  (cid:2) Transitional: The I/O group contains physical Fibre Channel and virtual ports that are 
  
  currently being used. You cannot change the target port mode directly from enabled to 
  disabled states, or vice versa. The target port mode must be in transitional state before it 
  can be changed to disabled or enabled states. 
  
  The system can be in the transitional state for an indefinite period while the system 
  configuration is changed. However, system performance can be affected because the 
  number of paths from the system to the host doubled. To avoid increasing the number of 
  paths substantially, use zoning or other means to temporarily remove some of the paths 
  until the state of the target port mode is enabled. 
  
  The port virtualization settings of I/O groups are available by clicking**Settings**→**System**→ 
  **I/O Groups**, as shown in Figure 5-73. 