A Hierarchical Modeling Approach for Assessing the Reliability and Performability of Burst Buffers

Eric Borba, Reza Salkhordeh, Salim Mimouni, Eduardo Tavares, Paulo Maciel, Hossein Asadi, André Brinkmann

Abstract: High availability is a crucial aspect of High-Performance Computing. Solid-state drives (SSD) offer peak bandwidth as node-local burst buffers. The limited write endurance of SSDs requires thorough investigation to ensure computational reliability. We propose a hierarchical model to evaluate the reliability and performability of burst buffers. We developed a machine-learning model to dynamically predict storage failures according to the wear caused by different applications. We also conducted an exploratory study to analyze the workload effects on SSD failures, and a representative dataset was adopted.