Data corruption in the storage stack: a closer look

• Autores: Lakshmi Bairavasundaram, Garth Goodson, Bianca Schroeder, Andrea Arpaci-Dusseau, Remzi Arpaci-Dusseau
• Localización: ;login:: the magazine of USENIX & SAGE, ISSN 1044-6397, Vol. 33, Nº. 3 (JUN), 2008, págs. 6-14
• Idioma: inglés
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• Resumen

  • One of the biggest chanllegences in designing storage systems is providing the reliability and availability that users expect. A serious threat to reliability is silent data corruption (i.e., corruption not detected by the disk drive). In order to develop suitable protection mechanisms against corruption, it is essential to undernstand its characteristics. In this article, we present the results from the first large-scale field study of data corruption. We analyze over 400,000 corruption instances recorded in production storage systems containing a total of 1.53 million disk drives, over a period of 41 months.