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Frangipani: A Scalable Distributed File System
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@MISC{Thekkath_frangipani:a,
author = {Chandramohan A. Thekkath and Timothy Mann and Edward K. Lee},
title = { Frangipani: A Scalable Distributed File System},
year = {}
}
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Abstract
The ideal distributed file system would provide all its users with coherent, shared access to the same set of files,yet would be arbitrarily scalable to provide more storage space and higher performance to a growing user community. It would be highly available in spite of component failures. It would require minimal human administration, and administration would not become more complex as more components were added. Frangipani is a new file system that approximates this ideal, yet was relatively easy to build because of its two-layer structure. The lower layer is Petal (described in an earlier paper), a distributed storage service that provides incrementally scalable, highly available, automatically managed virtual disks. In the upper layer, multiple machines run the same Frangipani file system code on top of a shared Petal virtual disk, using a distributed lock service to ensure coherence. Frangipaniis meant to run in a cluster of machines that are under a common administration and can communicate securely. Thus the machines trust one another and the shared virtual disk approach is practical. Of course, a Frangipani file system can be exported to untrusted machines using ordinary network file access protocols. We have implemented Frangipani on a collection of Alphas running DIGITAL Unix 4.0. Initial measurements indicate that Frangipani has excellent single-server performance and scales well as servers are added.
Keyphrases
scalable distributed file system digital unix initial measurement new file system virtual disk petal virtual disk frangipani file system common administration distributed lock service storage space ordinary network file access protocol excellent single-server performance file system two-layer structure multiple machine user community upper layer frangipani file system code virtual disk approach minimal human administration component failure untrusted machine distributed storage service
