Method and apparatus for selecting a node to place a replica in cloud storage system

摘要

The present invention discloses methods for the effective distribution stored in the cloud storage system. In a preferred embodiment, the first copies (or original) apply, the Locality Policy, and other replica, Low-cost Policy, by applying the Load Balancing Policy and Space Balancing Policy in order to select the region. After the selected area in the storage node that stage, Load Balancing Policy and Space Balancing Policy in order to cloud storage store policy to apply to.