Research on the Dynamic Replica Strategy in Cloud Storage Environment Based on QoS
The load balancing may be destroyed and the user QoS requirement is not satisfied due to the static replica strategy in the existing default replica strategy. In order to solve these problems, proposes a dynamic replica generation algorithm and a dynamic replica adjust algorithm. Simulates the experiment using CloudSim toolkit, the results show that the proposed strategy is superior to the default replica strategy be-cause it dynamically adds and deletes replicas according to the user's access requirements, which will reduce response time and satisfy user's QoS requirement.
Cloud StorageReplica StrategyDynamic ReplicaQuality of Service
NETL
NSTL
万方数据
维普
