SIMULATION AND MODELLING OF RAID 0 SYSTEM PERFORMANCE
Fucheng Wan, NJ Dingle, W.J. Knottenbelt, A. S. Lebrecht · Spiral (Imperial College London) · 2008
RAID systems are fundamental components of modern storage infrastructures.It is therefore important to model their performance effectively.This paper describes a simulation model which predicts the cumulative distribution function of I/O request response time in a RAID 0 system consisting of homogeneous zoned disk drives.The model is constructed in a bottom-up manner, starting by abstracting a single disk drive as an M/G/1 queue.This is then extended to model a RAID 0 system using a split-merge queueing network.Simulation results of I/O request response time for RAID 0 systems with various numbers of disks are computed and compared against device measurements.