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Designing WAN Availability

·1751 words·9 mins
One of my hot topics in my past that I haven’t seen written about often is the calculation of WAN availability and what the design is built for. There is often the number of 9’s whether that is 5 9s or 3 9s or otherwise, where do you start? Well, in the past the post by outlines system reliability. It talks about designing systems in parallel and in serial. What does that mean.