> > > > Do we think this is a Postgres problem, a Linux problem or a
> > > > problem specific to my hardware setup? Was I wrong to think
> > > > that I should be able to stream directly from pg_dump to
> > > > /dev/st0? I would have thought it *should* work, but maybe
> > > > I was wrong in the first place with that?
> > > If you can dd the file onto your tape drive, then it's some
> > > weird interaction between pg_dump and your system I'd think.
> > > Could the be some maximum size that you can buffer through
> > > pipes / redirects on your machine?
> > >
> > > I'd test to see if cat pgdumpfile.sql > /dev/st0 works or not.
> > > If it fails at the same approximate size, then it's something
> > > to do with redirection. If tar works but redirects fail, then
> > > the problem isn't with postgresql. i.e. do something similar
> > > to what you're doing with pgsql and see which things fail and
> > > which ones don't.
> > It appears to be me :(
> >
> > [postgres@stirling ~]$ cat /tmp/dbname080225.sql > /dev/st0
> > cat: write error: Invalid argument
> >
> > It ran for a good 30 minutes, then died with that.
> I wonder what it's meaning by invalid arg? Is something in the
> .sql file somehow coming across as an argument? Can you cat the
> sql file to /dev/null successfully?
Yes.
[postgres@stirling ~]$ cat /tmp/dbname080225.sql > /dev/null
[postgres@stirling ~]$
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