A New Method to I/O Combination on RAID Controller

Scheduling strategy of storage device is the main study issues about storage systems, and scheduling strategy affect I/O response time and equipment utilization. The operating mode about integrated parallel storage devices is different from a single storage mode, thus its scheduling strategy is clearly different from the individual storage devices. In this paper, integrated disk array as an example of I/O scheduling strategy, we raise and describe the incorporated I/O scheduling strategy based on the disk drive. Through the realization of I/O scheduling strategy and testing, the control I/O access time of incorporated I/O operation is obviously smaller than conventional control I/O access time. the result show that the data-transmission rate under the incorporated I/O operation is generally larger than the conventional data-transmission rate.