566 Implementing the IBM Storwize V7000 with IBM Spectrum Virtualize V8.2.1
This configuration has the following characteristics: 
– There are two I/O Groups with nodes in those I/O groups that are configured in two 
remote copy port groups because there are two inter-site links for participating in IP 
partnership. However, only one port per system in a particular remote copy port group 
remains active and participates in IP partnership. 
– One port per system from each remote copy port group participates in IP partnership 
simultaneously. Therefore, both of the links are used. 
– If a node or port on the node that is actively participating in IP partnership fails, the RC 
data path is established from that port because another port is available on an 
alternative node in the system with the same remote copy port group. 
– The path selection algorithm starts discovery of available ports in the affected remote 
copy port group in the alternative I/O groups and paths are reestablished, which 
restores the total bandwidth across both links.
– The remaining or all of the I/O groups can be in remote copy partnerships with other 
systems.
/SM590000An example of an unsupported configuration for a single inter-site link is shown in 
Figure 11-105 (configuration 8).
Figure 11-105   Two node systems with single inter-site link and remote copy port groups configured
As shown in Figure 11-105, this configuration is similar to Configuration 2, but differs 
because each node now has the same remote copy port group that is configured on more 
than one IP port. 
On any node, only one port at any time can participate in IP partnership. Configuring 
multiple ports in the same remote copy group on the same node is not supported.