This is the mail archive of the
mailing list for the Cygwin project.
Re: Pipe dies during backup to remote Sun QUIC streamer
- To: cygwin at sourceware dot cygnus dot com
- Subject: Re: Pipe dies during backup to remote Sun QUIC streamer
- From: Joerg Bruehe <joerg at sql dot de>
- Date: Wed, 14 Jun 2000 12:39:20 +0200
- Organization: SQL Datenbanksysteme GmbH
- References: <39464067.E3B49840@softwareag.com>
Uli Lange wrote:
> Op-system: 20.1 under NT4.0 service pack5
> Backup client: SUN with QUIC streamer
> Problem: Doing a tar from the NT box to a remote SUN QUIC streamer dies.
> Used command: tar --rsh-command=/winnt/system32/rsh.exe -cvb 20 . | rsh
> beach dd of=/dev/rst0 obs=20b
> Description: Several files are backed up and then the pipe dies
> unexpectedly with "fork [Try again]"
> Reading the tape on the SUN with tar -tv shows exactly these files plus
> "Unexpected EOF"
> Every comment is appreciated
1) I do not know the details of GNU tar, esp. the meaning of the
"--rsh-command" parameter. I can only guess it would be used
if you gave a "host:device" value for a "-f" parameter,
but you do not do that (might be worth a try).
2) Which shell are you using, and does it support arbitrary size
pipes ? Remember you do it on NT, and IMHO this is not a stable
"base" for many things - pipes being one of them.
(I had to write a program starting two subprograms to communicate
via pipes - a real horror, compared to Unix !)
3) How large is the "tar" file really written to tape ?
I suspect that the pipe mechanism does not work in your setting
for your amount of data.
HTH, Joerg Bruehe
Joerg Bruehe, SQL Datenbanksysteme GmbH, Berlin, Germany
(speaking only for himself)
Want to unsubscribe from this list?
Send a message to firstname.lastname@example.org