As shown in Figure 11-98 on page 556, there are two systems: A single remote copy port group 1 is created on Node A1 on System A and on Node B2 on  System B because there is only a single inter-site link to facilitate the IP partnership traffic.  An administrator might choose to configure the remote copy port group on Node B1 on  System B rather than Node B2.  At any time, only the IP addresses that are configured in remote copy port group 1 on the  nodes in System A and System B participate in establishing data paths between the two  systems after the IP partnerships are created. In this configuration, no failover ports are  configured on the partner node in the same I/O group.  This configuration has the following characteristics: – System A – System B – Only one node in each system has a remote copy port group that is configured, and no  failover ports are configured.  – If the Node A1 in System A or the Node B2 in System B were to encounter a failure, the  IP partnership stops and enters the  Not_Present  state until the failed nodes recover.  – After the nodes recover, the IP ports fail back, the IP partnership recovers, and the  partnership state goes to the  Fully_Configured  state.  – This configuration is not re commended because it is not resilient to node failures.  – If the inter-site system link fails, the IP partnerships change to the  Not_Present  state.  GLYPH<SM590000> Two 2-node systems in IP partnership over a single inter-site link (with failover ports  configured), as shown in Figure 11-99 (configuration 2). Chapter 11. Advanced Copy Services  557 Figure 11-99 One remote copy group on each system and nodes with failover ports configured