Chapter 14. Power Protection
| Power-protection systems do just what the name implies: They protect equipment from the effects of power surges and power failures. In particular, power surges and spikes can damage server and client PC hardware, and a loss of power can result in lost data or, at the very least, lost productivity. Because servers store data used by departments or entire companies, the threat of data loss looms potentially much larger than even hardware damage. These threats to computer hardware and equipment correspond to three major types of power protection for servers:
The following sections describe the most important features and uses of each type of power protection. Caution All the power-protection features in this chapter and the protection features in the power supply inside your computer require that the computer's AC power cable be connected to a ground. Some older business locations do not have three-prong (grounded) outlets to accommodate grounded devices. Do not use a three-pronged adapter (that bypasses the three-prong requirement and enables you to connect to a two-prong socket) to plug a surge suppressor, computer, or UPS into a two-pronged outlet. They often don't provide a good ground and can inhibit the capabilities of your power-protection devices. You should also test your power sockets to ensure that they are grounded. Sometimes outlets, despite having three-prong sockets, are not connected to a ground wire; an inexpensive socket tester (available at most hardware stores) can detect this condition. If you do not properly ground your equipment, your equipment could be damaged, and surge suppression features might not work properly. |
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