Performance evaluation of redundant array of inexpensive disks

Houjun Yang, Mansoor Alam, Bin Liu, min Song

Research output: Contribution to journalArticlepeer-review

Abstract

This paper investigates the performance of redundant array of inexpensive disks (RAID) with a level of 5 by using a Markov model. Considering RAID systems cannot be adequately modeled using a single queuing model, we use four modes to model the RAID-5 system. The analytical model is verified by simulation through a Q+ simulation software package. The results obtained from the Markov model are very close to the Q+ simulation results. Additionally, several simulation scenarios are provided to demonstrate the relationship of the number of disks and the response times.

Original languageEnglish
Pages (from-to)899-903
Number of pages5
JournalWSEAS Transactions on Computers
Volume5
Issue number5
StatePublished - May 2006

Keywords

  • Markov model
  • Performance evaluation
  • Raid

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