212 Planning, Installing, and Managing the IBM System x3950 M2Figure 4-12 x3950 M2 - connected scalability cables4.6.1 Two-node configurationA two-node configuration requires two 3.0 m (9.8 feet) ScaleXpander cables. Thecable diagram is shown in Figure 4-13 on page 213. One 3.0 m cable is includedwith every x3950 M2 system, or in the ScaleXpander Option Kit (for the upgradedx3850 M2 systems).The scalability cables required for a two-node configuration are listed inTable 4-4.Table 4-4 Scalability cables for two-node configurationTo cable a two-node configuration:1. Label each end of each ScaleXpander cable according to where it will beconnected to each server.2. Connect the ScaleXpander cables to node1:a. Connect one end of a ScaleXpander cable to port 1 on node 1; then,connect the opposite end of the cable to port 1 of node 2.b. Connect one end of a ScaleXpander cable to port 2 on node 2; then,connect the opposite end of the cable to port 2 of node 2.See Figure 4-13 on page 213.Scalability cable Connection ( → )3.0 m cable Port 1 of node 1 → port 1 of node 23.0 m cable Port 2 of node 1 → port 2 of node 2
