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> However, if I > have a farm of > W2K servers and I assume 99% uptime per server (VERY fair > assumption) then I > only have to have 3 machines in my farm to have a 99.9999% uptime (in > theory). Hey, but these machines are cheap, let's have 6. In theory that's > 99.9999999999% uptime. <COMMON SENSE> This argument implies totally redundant systems. That means each of your servers has to have the capability to run your entire application. A W2K machine with that sort of capability is not cheap. In fact, it's comparable to a low-end iSeries. Whereas you can easily keep two AS/400's up and running with 0% aggregate downtime. </COMMON SENSE>
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