Planning Volume 2, Control Workstation and Software Environment

Example 2 - A switchless system

Figure 32 shows a switchless system having one frame and only 7 nodes. Partitioning this system might be helpful for migration testing similar to that discussed in Example 1. In this case, since there is no switch, we are not bound by switch chip-related rules. We can assign nodes to partitions in any way we want.

Figure 32. One sparse frame with no switch

View figure.

For example, suppose you wanted to divide the system into 2 pieces as follows:

1. In Partition 1, group the Europe node and its affiliates, which are Italy, Sweden, and England.
2. In Partition 2, group the America node and its affiliates, which are New York and Ohio.

Using node numbers, you have:

                Partition 1                 Partition 2
                -----------                 -----------
          nodes  1,2,7,9                nodes  3,5,10

This configuration does not match any of the predefined layouts. Therefore, you would use the System Partitioning Aid to construct it.