提出了一种基于最小代价的广域网存储虚拟化的动态副本管理模型。
A new dynamic replication model base on minimal access cost to implement storage virtualization in wide-area network is introduced.
第2 1届大运会信息系统的网络环境是建立在广域网基础上的虚拟专用信息网络平台。
The network environment of the information system of the 21 st Universiade is based on the internetworking, which is a virtual special network platform.
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