Efficient I/O characteristics collection method on cloud storage

To effectively collect the I/O characteristics of cloud storage system,a hierarchical I/O characteristics analysis mechanism based on the structure of different layers of cloud storage system architecture is proposed.In this mechanism,the I/O characteristics are collected and analyzed from both global cloud platform and local physical nodes.The I/O characteristics are collected by embedded I/O monitor module in the virtual layer,and is analyzed by the on-line statistical analysis module.Experimental results show that this mecha-nism can effectively collect the I/O characteristics of the cloud storage system which provides reference for performance optimization of cloud storage system.