9.2. Power Management

A key element of any fault tolerance plan is a power management strategy. Electricity powers the network, switches, hubs, PCs, and computer servers. Variations in power can cause problems ranging from a reboot after a short loss of service to damaged equipment and data. Fortunately, a number of products are available to help protect sensitive systems from the dangers of lightning strikes, dirty (uneven) power, and accidental power cable disconnection, including surge protectors, Standby Power Supplies, Uninterruptible Power Supplies, and line conditioners. What you use depends on how critical your system is (whether you decide that it is a hot, warm, or cold site). At a minimum, you should connect individual workstations ...

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