Chapter 11. Advanced Copy Services 563
/SM590000Two 4-node systems in IP partnership with dual inter-site links, as shown in Figure 11-103 
(configuration 6).
Figure 11-103   Multinode systems with dual inter-site links between the two systems
As shown in Figure 11-103, there are two 4-node systems: 
– System A
– System B
This configuration is an extension of Configuration 5 to a multinode multi-I/O group 
environment. This configuration has two I/O groups, and each node in the I/O group has a 
single port that is configured in remote copy port groups 1 or 2. 
Although two ports are configured in remote copy port groups 1 and 2 on each system, 
only one IP port in each remote copy port group on each system actively participates in IP 
partnership. The other ports that are configured in the same remote copy port group act as 
standby ports in the event of failure. Which port in a configured remote copy port group 
participates in IP partnership at any moment is determined by a path configuration 
algorithm.