针对广域网络环境下面向用户需求的信息服务要求，本文设计了一种基于语义覆盖网络的信息组织与服务体系框架。
This paper aims at the demands of user-requirements-oriented information services, and puts forward an information organization and service framework based on semantic overlay networks.
它对RAID5进行扩展，将数据分片分散存储在网络中的各节点，并针对不稳定的广域网络使用多副本，以获得期望的可用性。
It places strip among all nodes in the storage networks through extended RAID 5, and USES multi-copies over instable WAN to gain expected availability.
它对RAID5进行扩展，将数据分片分散存储在网络中的各节点，并针对不稳定的广域网络使用多副本，以获得期望的可用性。
It places strip among all nodes in the storage networks through extended RAID 5, and USES multi-copies over instable WAN to gain expected availability.
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