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Re: Backup to Tape Incomplete

From: "Phillip Smith" <phillip(dot)smith(at)weatherbeeta(dot)com(dot)au>
To:
Cc: <pgsql-admin(at)postgresql(dot)org>
Subject: Re: Backup to Tape Incomplete
Date: 2008-02-27 04:20:22
Message-ID: 020401c878f8$1194b500$9b0014ac@wbaus090 (view raw or flat)
Thread:
Lists: pgsql-admin
> >  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(at)stirling ~]$ cat /tmp/dbname080225.sql > /dev/st0
cat: write error: Invalid argument

It ran for a good 30 minutes, then died with that.


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Subject: Re: Backup to Tape Incomplete

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