[Beowulf] Remote console management

Jerker Nyberg jerker at Update.UU.SE
Fri Sep 23 12:49:37 PDT 2005

This sounds like buggy Tyan hardware to me. Replace motherboard?

I did some testing with IPMI with a Tyan motherboard (IPMI card) and Intel 
motherboard (integrated in motherboard) in spring 2004. In theory IPMI was 
supported for the Tyan motherboard, but in practice things simply didn't 
work good enough.  Our supplier said after their own testing that they 
couldn't support what they have sold. But they said after they had been 
talking with Tyan that they could support a special opteron-based 
motherboard.  But then I had run out of time and went Intel. And things 
simply (well almost, sometimes I had to try several times to connect with 
SOL) worked.

Regards Jerker Nyberg, Uppsala, Sweden.

On Fri, 23 Sep 2005, David Mathog wrote:

> I do.
> I've often seen our Tyan boards go into a state where
> they IGNORE the front panel reset and power buttons.  The IPMI
> cards I'm aware of, for instance this one:
> http://www.supermicro.com/products/accessories/addon/AOC-IPMI20-E.cfm
> control power through the same headers as the buttons on
> the chassis: much as I described in another part of
> this thread concerning wiring these motherboard
> pins out the back.  So if your motherboard goes into one of these
> nonresponsive states you will _not_ be able to reboot it with
> the IPMI card.  However, you _could_ reboot it by actually
> cycling the power going into the box via the remotely controlled
> power strips.
> There may be IPMI cards which have a socket for the PS
> cable, and another power cable from there to your motherboard,
> so that they can gain access to the control lines between the PS
> and the motherboard.  However, I've never encountered such a beast.
> Regards,
> David Mathog
> mathog at caltech.edu
> Manager, Sequence Analysis Facility, Biology Division, Caltech
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