Efficient recovery in Harp (replicated Unix file system)

B. Liskov, Sanjay Ghemawat, R. Gruber, Paul Johnson, L. Shrira
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Abstract

Harp is a replicated Unix file system accessible via the VFS interface. It provides highly available and reliable storage for files and guarantees that file operations are executed atomically in spite of concurrency and failures. Replication enables Harp to safely trade disk accesses for network communication and thus to provide good performance both during normal operation and during recovery. The authors focus on the techniques Harp uses to achieve efficient recovery.<>
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在Harp中高效恢复(复制的Unix文件系统)
Harp是一个可通过VFS接口访问的复制Unix文件系统。它为文件提供了高可用性和可靠的存储,并保证在并发性和故障的情况下自动执行文件操作。复制使Harp能够安全地将磁盘访问交换为网络通信,从而在正常操作和恢复期间提供良好的性能。作者着重介绍了哈普用来实现有效回收的技术
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