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Print Catalog, electronic edition - Table of Contents:
Power failures, also known as blackouts, are the
easiest power problem to diagnose. If the lights go out,
chance are there has been a power failure. Any temporary,
or not so temporary, interruption in the flow of electricity will
result in a power failure which can cause hardware damage and data
Violent weather is the first thing that comes to
mind, but there are any number of other causes. Overburdened
power grids, car accidents that bring down power lines, lightning
strikes, and human error are all likely sources.
Power failures are more than simply inconvenient
and annoying. They can cause computer users to lose hours
of work when systems shut down without warning. Power failures
can even damage hard drives resulting in loss of all data on a
system. Consider the fact that a single power outage on a
high traffic network can stall hundreds of users, and the seriousness
of power failures becomes evident. Even worse, when the power
returns, it often brings after-blackout spikes and surges to cause
even more damage.
Computer users should consider a UPS system to protect
their systems. These systems monitor line levels and switch
over to battery power when utility power fails.
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