Re: Ultrix 2.0 and disk performance

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Article #430

#430

From: 840033
Date: Thu, 16 Jul 1987 16:39

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  We installed Ultrix 2.0 on one of our uVAX II's.  Have noticed a substantial
  drop ( 25-35% ) in disk throughput, for single tasks sequentially accessing 
  large files ( the problem may exist for other types of applications as well;
  sequential i/o is the only thing we looked at closely).  Our disks are Fuji
  M2333k's (300 meg) controlled by Emulex QD32's.  DEC claims no known problems;
  says throughput has improved for their own small disks.

  I would appreciate hearing from anyone running Ultrix 2.0 on uVAX II's re 
  their experiences to date on this subject (regardless of who manufactured
  the disks).

    many thanks, greg pavlov, fstrf, amherst, ny.

   ...!hscfvax!pavlov

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Path: arc1-ca.pugleaf.net!utzoo!mnetor!uunet!seismo!gatech!mcdchg!usenet
From: pavlov@hscfvax.UUCP (840033@G.Pavlov)
Newsgroups: comp.unix
Subject: Re: Ultrix 2.0 and disk performance
Message-ID: <1124@mcdchg.UUCP>
Date: Thu, 16-Jul-87 12:39:07 EDT
Article-I.D.: mcdchg.1124
Posted: Thu Jul 16 12:39:07 1987
Date-Received: Sat, 18-Jul-87 08:01:23 EDT
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Organization: Health Sciences Computing Facility, Harvard University
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Keywords: problem ultrix disk i/o
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