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Design and implementation of the Vesta parallel file system

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2 Author(s)
Corbett, P.F. ; IBM Thomas J. Watson Res. Center, Yorktown Heights, NY, USA ; Feitelson, D.G.

The Vesta parallel file system is designed to provide parallel file access to application programs running on multicomputers with parallel I/O subsystems. Vesta uses a new abstraction of files: a file is not a sequence of bytes, but rather it can be partitioned into multiple disjoint sequences that are accessed in parallel. The partitioning-which can also be changed dynamically-reduces the need for synchronization and coordination during the access. Some control over the layout of data is also provided, so the layout can be marched with the anticipated access patterns. The system is fully implemented, and is beginning to be used by application programmers. The implementation does not compromise scalability or parallelism. In fact, all data accesses are done directly to the I/O node that contains the requested data, without any indirection or access to shared metadata. There are no centralized control points in the system

Published in:

Scalable High-Performance Computing Conference, 1994., Proceedings of the

Date of Conference:

23-25 May 1994