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## 11.8.8 Supported configurations 

Note:  For explanation purposes, this section shows a node with 2 ports available: 1 and 2. This number generally increments when IBM SAN Volume Controller nodes model DH8 or SV1 are used. 

The following supported configurations for IP partnership that were in the first release are described in this section: 

GLYPH<SM590000> Two 2-node systems in IP partnership over a single inter-site link, as shown in Figure 11-98 (configuration 1). 

<img src='content_image/1012340.jpg'>

As shown in Figure 11-98, two systems are available: 

– System A 

– System B 

A single remote copy port group 1 is created on Node A1 on System A and on Node B2 on System B because only a single inter-site link is used 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. 

