Pseudo-parallel I/O schedule of RAID based on close queuing model
Dacheng Li · Computer Engineering and Applications Journal · 2009
It is an important key problem all the time that how to boost the I/O performance of the RAID subsystems.A pseudo-parallel I/O schedule is proposed for this problem based on the idea of parallelism.The scheduler is focused to handle the exterior I/O transfer and interior data migration synchronously as far as possible.The experimental results prove that the scheduler is effective to improve the sustained data transfer rate of RAID arrays.Moreover,the scheduler partially settles the problem of small write for RAID5.