Availability Evaluation and Maintenance Policy of Data Center Infrastructure

  • Kádna Camboim UFPE/UFAPE
  • Carlos Melo UFPE
  • Jean Araujo UFAPE
  • Fernanda Alencar UFPE

Resumo


The convergence of communication networks and the demand for storage and processing capacities for large amounts of information, especially in recent years, has driven requests for everything-as-a-service and has been generating, on an increasing scale, demands for new data center constructions. However, to meet dependability attributes, the design of these infrastructures needs to consider, at least, the system’s availability to be achieved. In this paper, we evaluate the availability of a Tier 1 data center infrastructure, considering the use of blade systems. We use modeling techniques based on reliability block diagrams and stochastic Petri nets to simulate a maintenance policy encompassed at different service levels (SLA). The results show dependability metrics, focusing on the availability and maintenance of these networks. We highlight the most severe difficulties in achieving high availability when there is no component redundancy, and the intervals between maintenance are long.

Palavras-chave: Data center, availability evaluation, maintenance policy, blade server, service level agreements (SLA)

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Publicado
23/11/2020
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CAMBOIM, Kádna; MELO, Carlos; ARAUJO, Jean; ALENCAR, Fernanda. Availability Evaluation and Maintenance Policy of Data Center Infrastructure. In: TRABALHOS EM ANDAMENTO - SIMPÓSIO BRASILEIRO DE ENGENHARIA DE SISTEMAS COMPUTACIONAIS (SBESC), 10. , 2020, Evento Online. Anais [...]. Porto Alegre: Sociedade Brasileira de Computação, 2020 . p. 198-203. DOI: https://doi.org/10.5753/sbesc_estendido.2020.13113.