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  From: Dan Shearer <dan@tellurian.com.au>
  To  : David Lloyd <lloy0076@rebel.net.au>
  Date: Wed, 22 May 2002 08:08:41 +0930 (CST)

Re: Amanda problem

On Wed, 22 May 2002, David Lloyd wrote:

> Older versions of GNU-TAR (most notably those shipping with RedHat 6.X)
> would report the most strange estimates to amanda thereby totally
> confusing amanda and causing all sorts of unexpected errors. On the
> other hand, the dump that is shipped with RedHat 7.1 has a tendency to
> fall over on bigger file systems.

Yes, and there are other problems of this category too. I probably should
have said "given known-good versions of gnutar, dump-for-your-OS and
Amanda, which should be used and when?"

I was expecting (and still do :-) that the answer to my question will talk
about things like Irix or Solaris. I have tested 64-bitness which doesn't
seem to swing it one way or another.

> The amanda user's mailing list appears to agree that xfsdump works
> reasonably well with amanda.

Well whatever the mailing list says I can tell you that it works for me,
but you have to do special stuff.

> I have a sneaking suspicion that's actually a religious war, although it
> should be reasonably clear that a tar archive is probably more portable
> than a dump archive. That is to say, you're more likely to see GNU-TAR
> about the place than dump.

I'm not so sure about that which is why I asked.

> I seem to recall that Linus doesn't like dump but I can't quite remember
> where I heard that.

Well, it is a pretty nasty thing to have filesystem-specific tools. Not
all dump/restores are like this, but most of the modern ones seem to
be. I can't go dump on ext3fs and restore on Tru64, it just doesn't work.

Regards,

--
Dan Shearer
dan@tellurian.com.au

-- 
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