content_image/981836.jpg
Finally, an eight-node system in IP partnership with a four-node system over dual inter-site links is depicted in Figure 6-34. 

<img src='content_image/981836.jpg'>

Figure 6-34 shows an eight-node System A in Site A and a four-node System B in Site B. Because a maximum of two I/O groups in IP partnership is supported in a system, although there are four I/O groups (eight nodes), nodes from only two I/O groups’ are configured with remote copy port groups in System A. The remaining or all of the I/O groups can be configured to be remote copy partnerships over FC. 

In this configuration, there are two links and two I/O groups that are configured with remote copy port groups 1 and 2. However, path selection logic is managed by an internal algorithm. Therefore, this configuration depends on the pathing algorithm to decide which of the nodes actively participate in IP partnership. Even if Node A5 and Node A6 are configured with remote copy port groups properly, active IP partnership traffic on both of the links can be driven from Node A1 and Node A2 only. 

