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In Reply to: RE: Rega did not deny the problem, at least not wholesale posted by keith_d on October 15, 2009 at 12:23:40
I've seen cases where a problem showed up at only one customer site where the failing equipment worked perfectly everyplace else, and yet the problem was ultimately tracked down to an engineering design error. In one case it turned out that a combination of heavy usage, optimized software that enabled this heavy usage, and mechanical design problems that caused static electricity build up under heavy usage caused errors. A defective disk controller design turned intermittent errors into permanent errors when it wrote on the wrong spot on the disk. There were only a few customers running the latest software, only a few customers placing heavy load on their systems, and only one doing both in Arizona (or was it New Mexico). Customers in more humid climates never had any problems.
For various reasons, and this example is one of them, I am very skeptical of arguments that are statistical in nature. All of these arguments may be perfectly valid when they are based on a correct model of reality, but the interesting problems always are ones where the model is broken.
Tony Lauck
"Diversity is the law of nature; no two entities in this universe are uniform." - P.R. Sarkar
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