This paper introduces a metadata service system which constructs a shared storage pool by hiberarchy file system and is based on two distributed hash. DHT resource location technique using locality 本文提出一种通过分层式文件系统构建共享存储池的采用两次分布式哈希函数方式的元数据服务系统.基于局部性的分布式哈希表资源定位技术