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- Newsgroups: comp.os.os2.networking
- Path: 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
-
- 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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