A key objective of the IBM Intelligent Bricks project is to create a highly reliable system from commodity components. By delaying service actions, possibly for the entire lifetime of the system, management of the system is simplified. This paper examines the hardware reliability and deferred maintenance of Intelligent Storage Brick (ISB) systems assuming a mesh-connected collection of bricks in which each brick includes processing power, memory, networking, and storage. On the basis of Monte Carlo simulations, the fraction of bricks that become unusable by a distributed data redundancy scheme due to degrading internal bandwidth and loss of external host connectivity is quantified.
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