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Determining how to extend the life of legacy
systems takes careful consideration of all the options. These
systems encompass an extremely important service or feature
that must work all the time. The legacy is that the system
has worked and must continue to work well beyond its anticipated
lifespan. A single obsolete component can bring down the reliability
of the whole system.
When a component is no long procurable, or
is nearing its expected lifespan, a decision must be made
about how to maintain the system. The answers to these questions
will determine the optimal solution.
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