Distributed Storage Model for Continuous Data Protection
Zheng He · Journal of Chinese Computer Systems · 2011
A typical Continuous Data Protection system must have an efficient storage system to support the CDP application.The paper proposed a distributed storage model and the architecture based on the model,also designed a distributed storage system.Compared to other distributed file system,the system has its creative points: Applying the distributed storage to CDP application;The distributed storage system supports file-level and block-level storage;This paper introduces the idea which stores the meta-data and data separately,and stores the data on different block levels.Through the demonstration and test of the prototype,the result indicates that the model and the method proposed in the paper can improve the efficiency of storage,use the bandwidth well,also decrease the load of CDP Server.Most important,the system has the advantage of low cost.