Reference Guide

Cabling Your Cluster Hardware 11
2
Cabling Your Cluster Hardware
Cabling the Mouse, Keyboard, and Monitor
When installing a cluster configuration in a rack, you must include a switch
box to connect the mouse, keyboard, and monitor to the nodes. See the
documentation included with your rack for instructions on cabling
connections of each node to the switch box.
Cabling the Power Supplies
See the documentation for each component in your cluster solution and
ensure that the specific power requirements are satisfied.
The following guidelines are recommended to protect your cluster solution
from power-related
failures:
• For nodes with multiple power supplies, plug each power supply into a
separate AC circuit.
• Use uninterruptible power supplies (UPS).
• For some environments, consider having backup generators and power
from separate electrical substations.
Figure 2-1 illustrates recommended methods for power cabling for a cluster
solution consisting of two Dell PowerEdge systems and a dual controller Dell
Compellent Storage Center. To ensure redundancy, the primary power
supplies of all the components are grouped into one or two circuits and the
redundant power supplies are grouped into a different circuit.