A Management Model of Distributed Unstructured Data Replica
Yong Sun · Jisuanji gongcheng · 2013
Aiming at the problem of data replicas management time-delay in the cloud storage system,this paper puts forward a distributed replica management model for unstructured data.The model reduces the system energy consumption through carefully designed rack-selection algorithm,which is the technical basis of green data center.To improve system performance and balance utilization of resources,the model uses a multi-linear-hashing algorithm,which can balance the data replicas distribution in different nodes intelligently.Simulation experimental results show that this model can reach higher storage and load balance compared with traditional global mapping method,it has excellent system performance,scalability and availability.