Chapter 5. Graphical user interface 177
The target port mode on the I/O group indicates the current state of port virtualization:
/SM590000Enabled: The I/O group contains virtual ports that are available to use.
/SM590000Disabled: The I/O group does not contain any virtualized ports.
/SM590000Transitional: 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.
Figure 5-73   I/O Group port virtualization
You can change the status of the port by right-clicking the wanted I/O group and selecting 
Change Target Port, as shown in Figure 5-74.
Figure 5-74   Changing port mode
Domain Name Server
Introduced within V7.8, IBM Spectrum Virtualize allows domain name server (DNS) entries to 
be manually set up in the IBM Storwize V7000. The information about the DNS servers in the 
IBM Storwize V7000 helps the system to access the DNS servers to resolve names of the 
computer resources that are in the external network.
right-click