Newsgroups: comp.parallel
From: moyer@mathcs.emory.edu (Steve Moyer)
Subject: TR: Scalable Concurrency Control for Parallel File Systems
Organization: Emory University, Dept of Math and CS
Date: 24 Feb 1995 16:27:45 -0500
Message-ID: <3ivv8s$ddd@usenet.srv.cis.pitt.edu>

The following report is now available, in postscript format, via anonymous
ftp from ftp.mathcs.emory.edu in the file pub/cstr/CSTR950202.ps.

	Scalable Concurrency Control for Parallel File Systems

			       Abstract

Parallel file systems employ data declustering to increase I/O throughput.
As a result, a single read or write operation can generate concurrent data
accesses on multiple storage devices.  Unless a concurrency control mechanism
is employed, familiar file access semantics are likely to be violated.
This paper details the transaction-based concurrency control mechanism
implemented in the PIOUS parallel file system.  Performance results are
presented demonstrating that sequential consistency semantics can be provided
without loss of system scalability.

-- 
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Steven A. Moyer                            Email:  moyer@mathcs.emory.edu
Mathematics and Computer Science           Office: (404) 727-0668
Emory University, Atlanta, GA 30322        Fax:    (404) 727-5611


