Kill the power faster than poweroff?
becker at scyld.com
Fri Sep 12 17:50:35 EDT 2003
On Fri, 12 Sep 2003, Mark Hahn wrote:
> > I'm a big fan of network IPMI 1.5, which is usually implemented by a
> > Baseboard Management Controller (BMC). The BMC is a microcontroller
> > running on stand-by power. It can control power, redirect the "serial"
> IPMI and BMC are attractive, but as far as I can tell, completely
> non-viable for moderately-priced nodes. I mean, if my 1-u dual costs
> $US 2k, adding a BMC probably means a 35-50% boost in price.
I wouldn't be a big fan if either
it was too expensive to be common
it was proprietary
I've seen quotes for around $30 extra when bundled with the system
board. Of course finding a BMC daughterboard later is difficult
and likely expensive, so you have to specify it with the system.
> or are there cheap BMC options? otherwise, it seems like a holdover
> from the world of "enterprise" gold-plated servers, where $1k on a
> $50K server is in the noise...
And you thought the option
Donald Becker becker at scyld.com
Scyld Computing Corporation http://www.scyld.com
914 Bay Ridge Road, Suite 220 Scyld Beowulf cluster system
Annapolis MD 21403 410-990-9993
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