High-speed data channel in the disk array system

摘要

Abstract: With the scale of disk array, more and more disk arrays are becoming stand alone. There are many advantages of using stand alone disk array, such as easy to install, upgrade and maintain, scalable. But the communication between host (called master) and disk array controller (called slave) is the main bottleneck problem in the system. The requirements for communication between master and slave are much higher. The bandwidth needed is well beyond that interface can supported and new ideas and methods are needed. In the communication between master and slave, higher performance is required for optimal utilization of the bandwidth. One of the promising technology to meet these requirements is to use the high speed data channel between master and slave. In this paper, a new method of using high speed data channel in the system of disk array is proposed. Some design issues of disk array using high speed data channel are also analyzed. !23