[Beowulf] Re: Purdue Supercomputer
joelja at bogus.com
Sun May 11 15:42:18 EDT 2008
Karen Shaeffer wrote:
> On Sun, May 11, 2008 at 02:45:05AM -0400, Mark Hahn wrote:
>>>> I find that with IPMI and console redirection, it's very rarely necessary
>>>> care about where your nodes are, at least from a sysadmin perspective.
>>> Speaking of IPMI, are there reasonable motherboards that incorporate
>>> it right into the design at this point, or is it still mostly an add
>> bit of both - supermicro and tyan both rely on add-in cards, but
>> HP (and probably some other vendors) have integrated IPMI onboard.
>> I keep reading stuff from Intel and AMD about managability which
>> sounds tantalizingly like IPMI-like managability being integrated
>> into the chipset.
>> I think the main issue is that ipmi needs a lan interface, though
>> I guess there are some examples of it sharing a port with the host.
> To implement full IPMI capability on the system board, then you need
> two separate and independent power distribution systems on the system
> board I believe, which is why they implement IPMI with a daughterboard.
+5volt standby from the atx power supply is used to provide wake-on-lan
functionality and power a ipmi implementation. it is available when
the system is otherwise off.
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