Unix® System Management Primer Plus

Power Management

Of course, none of your data center equipment is of much use without power, which makes the lack of attention paid to managing the quality of the power flowing to business-critical machines quite surprising. Managing the power to your data center involves controlling the power supply, securing redundant power supplies for power failure backup, managing the power cables, and putting uninterruptible power supplies in place where they're needed.

Managing Redundant Power Supplies

The power supply is the life force of electronic equipment. This device converts electrical power from a wall outlet into a form that the machine can use inside its delicate circuitry. The problem with power supplies is that when they fail (and they do