Tuning STARFISH

Dartmouth Technical Report PCS-TR96-296

	David Kotz

Date: October 1996

URL (compressed postscript): <http://www.cs.dartmouth.edu/reports/TR96-296.ps.Z> (152KB)

URL (PDF): <http://www.cs.dartmouth.edu/reports/TR96-296.pdf> (284KB)

Abstract:
 STARFISH is a parallel file-system simulator we built for our research
 into the concept of disk-directed I/O.  In this report, we detail
 steps taken to tune the file systems supported by STARFISH, which
 include a traditional parallel file system (with caching) and a
 disk-directed I/O system.  In particular, we now support two-phase
 I/O, use smarter disk scheduling, increased the maximum number of
 outstanding requests that a compute processor may make to each disk,
 and added gather/scatter block transfer.  We also present results of
 the experiments driving the tuning effort.