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 language | English |
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Pages (from-to) | 899-903 |
Number of pages | 5 |
Journal | WSEAS Transactions on Computers |
Volume | 5 |
Issue number | 5 |
State | Published - May 2006 |
Keywords
- Markov model
- Performance evaluation
- Raid