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Date: Wed, 28 Oct 2009 14:05:33 -0700
From: Andrew Sharp <andy.sharp@lsi.com>
To: Rendell Fong <Rendell.Fong@lsi.com>
Cc: "Vandever, Chris" <Chris.Vandever@lsi.com>
Subject: Re: ASD / mgmt vsvr / vsvr context
Message-ID: <20091028140533.1830af96@ripper.onstor.net>
In-Reply-To: <1256754637.29384.37.camel@rendellf>
References: <F9DCB1C30AC37B4EB352D0DE0AE18E5F011A732DF3@cosmail02.lsi.com>
	<1256754637.29384.37.camel@rendellf>
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On Wed, 28 Oct 2009 12:30:37 -0600 Rendell Fong <Rendell.Fong@lsi.com>
wrote:

> On Wed, 2009-10-28 at 11:56 -0600, Vandever, Chris wrote:
> > In the docs we say that for autosupport to work, you need to
> > configure DNS for the mgmt vsvr.  In the source
> > (code/nfx-sh/cmd_autosupport.c) it doesn't look like the
> > autosupport commands require a vsvr context. Also, in the source
> > (code/sm-event/asd.c) calls ems_sendNextEmail(), which calls
> > as_sendMailMsg(), which execs 'usr/sbin/exim4'.  I would expect
> > that would try to send the email out via one of the ssc mgmt ports,
> > not via any of the gigE ports for vsvrs, but I could be wrong. I
> > believe what the doc says, but I'm at a loss to know why it's
> > relevant.
> 
> My recollection is that the email uses the ssc mgmt ports.
> However, I think its necessary to setup DNS for the mgmt vsvr based on
> my experience.  I don't know why that is.

No, it uses the mgmt vsvr network port(s).  That is why DNS needs to be
configured for them, and why, well obviously, the mgmt vsvr network has
to be configured.  To be quite honest, I never agreed with this, but
apparently some customer demanded it way back before I ever joined
Onstor, and so that's the way it is.

I think in the Bobcat/BSD, there is some hack where if it fails in
certain trivial ways, it will try some arbitrary method to send it on
the SSC interface(s), but that same hack really isn't possible on
cougar.

> I know that for system upgrade at least, we support it within the mgmt
> vsvr context because we had to tweek wget (does ftp in Cougar) to get
> it to do a special dns lookup for that case.

Same for sendmail/exim.

> CCing Andy on this since I know he made some exim tweeks.  It may have
> been for the same purpose but I'm not sure.
> 
> >  
> > The context for the question is that for Orion in a block-only
> > config (no NAS file services), they might like to use asd, or
> > equivalent functionality.
> >  
> > Off the top of your head can you shed any light on what interface is
> > used or why we need the DNS config for the mgmt vsvr?
> >  
> > Thanks.
> >  
> > ChrisV
> >  
> 
