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Open all hours?

High availability shouldn’t mean unavailability. By Philip Ling.

There was a dichotomy in the industry between combining highly reliable equipment and the seductive cost savings of off the shelf hardware. The former is designed to provide hours of service without failure, while the latter panders to the desire to lower the cost of deploying such systems.
In the past, the cost of high availability was borne through bespoke, highly vertical designs. But it seems that paradigm changed when openness emerged as the future of system architectures.
Open architectures, as they are known, are designed to be built using openly available components, which in this case can represent either hardware or software elements. In a system built to provide high availability, components are often bespoke because they are vertically integrated, providing redundancy or control for a number of other components in a systemic fashion. The challenge, then, is to create enough components that incorporate the ‘high availability’ ethos in a cost effective format.

Philip Ling

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