Article View: comp.os.os2.networking
Article #583Re: tar through IBM NFSD freezes OS/2
From: Ignacy Misztal
Date: Fri, 28 Aug 1992 19:01
Date: Fri, 28 Aug 1992 19:01
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2249 bytes
chandoni@husc8.harvard.edu (John-Marc Chandonia, , , ) writes: >In article <ignacij.714944187@meishan.animal.uiuc.edu>, ignacij@meishan.animal.uiuc.edu (Ignacy Misztal) writes: >> I used tar on a Sun to backup an HPFS disk connected remotely by NFSD in >> IBM TCP/IP 1.2.1. Previously, this broke down NFSD if buffer size was 4k. >> With buffer size 512 to 1k, tar works for about an hour, backing up >> about 40 Mbytes, and then the system freezes. Ctrl-Alt-Del does now work >> and the system has to be reset. >> Did anybody have similar experience? >I simply have the problem of *slow* NFS; copying a 10M file to a networked >drive took about an hour. Using ftp to perform the same transfer >takes less than a minute. The destination system is convex unix. >I've tried adjusting the buffer size to 1k to no avail; has anybody >got any other performance tips? Does anybody have anything special >running on the unix side? Backing through NFSD gives me throuput of 1.5 Mb/s with 2 kb packets. The rate is sustaned until 50-70 Mbytes, when the computer locks up. I have traced that lock up to a corrupted file on a HPFS partition. Touching that file by xcopy, grep etc. always freezes the desktop. Removing that file help advanvce next 10-20 Mbytes, until the next corrupted file. It seems that HPFS corrupts the files itself! I am using a 486/33 with a 660 Mbyte ESDI disk. ---------------------------------------------------------------------- Ignacy Misztal E-mail: ignacy@uiuc.edu University of Illinois Phone: (217) 244-3164 1207 W. Gregory Dr. Urbana, IL 61801 ----------------------------------------------------------------------
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Newsgroups: comp.os.os2.networking Path: arc1-ca.pugleaf.net!sparky!uunet!elroy.jpl.nasa.gov!sdd.hp.com!ux1.cso.uiuc.edu!news.cso.uiuc.edu!meishan.animal.uiuc.edu!ignacij From: ignacij@meishan.animal.uiuc.edu (Ignacy Misztal) Subject: Re: tar through IBM NFSD freezes OS/2 References: <ignacij.714944187@meishan.animal.uiuc.edu> <1992Aug28.122934.15187@husc3.harvard.edu> Message-ID: <ignacij.715028492@meishan.animal.uiuc.edu> Sender: usenet@news.cso.uiuc.edu (Net Noise owner) Organization: University of Illinois at Urbana Date: Fri, 28 Aug 1992 19:01:32 GMT Lines: 33