CAS Data Storage Environment
By the end of 2017, the storage capacity of the CAS Data Cloud has reached 52PB. The CAS Data Storage Environment has become a cloud service environment distributed across 12 CAS regional branches with a centralized management and service pattern. The environment provides data infrastructure services across the CAS such as data storage, data archive, backup & data recovery and virtual machine; supporting the disaster recovery, long-term preservation, sharing and value-added application of important data assets. By the end of 2017, the availability rate of the cloud storage has exceeded 99.99%. The usage rate of CPU and storage have reached utilization rate is 72% and 76% respectively. 322 new virtual machines, 1,174 CPU cores and 4388G memory have been added, and the total storage usage rate of the cluster has reached 87%.