Replication in the Harp File System

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Replication in the Harp File System

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by Barbara Liskov , Sanjay Ghemawat , Robert Gruber , Paul Johnson , Liuba Shrira , Michael Williams

Citations:

177 - 17 self

BibTeX

@MISC{Liskov_replicationin,
    author = {Barbara Liskov and Sanjay Ghemawat and Robert Gruber and Paul Johnson and Liuba Shrira and Michael Williams},
    title = { Replication in the Harp File System},
    year = {}
}

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Abstract

Harp uses the primary copy replication This paper describes the design and implementation of the Harp file system. 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. It uses a novel variation of the primary copy replication technique that provides good performance because it allows us to trade disk accesses for network communication. Harp is intended to be used within a file service in a distributed network; in our current implementation, it is accessed via NFS. Preliminary performance results indicate that

Keyphrases

harp file system abstract replication primary copy replication technique current implemen-tation primary copy replication reliable storage file operation first implementation file ser-vice unreplicated implementation replicated unix file system failover algorithm system mask failure unix file preliminary performance result response time subsequent failovers good performance be-cause backup server enough backup novel feature good system capacity good response primary performs primary copy scheme novel variation conventional hardware network communication inaccessible server user operation quick response disk access system capacity single primary server vfs interface client call key performance issue time period distributed network

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