[lug] server spec

Sean Reifschneider jafo at tummy.com
Thu Jun 14 03:05:07 MDT 2007

On Wed, Jun 13, 2007 at 10:33:08PM -0600, Bear Giles wrote:
>BTW I've read that some next-generation servers take DC power instead of 

Yeah, next generation systems from the '50s.  :-)  Most of these "new" DC
systems use -48 volts DC, common in the telco industry for a very long
time.  You know, just like those 19" racks we love so much...  Off the top
of my head, I think they're saying it saves around 20% in power
consumption, which means that it also saves 20% in cooling costs.

Also, DC power plants require less equipment to run.  They still have power
supplies in the computer, to convert to the + and - 5 and 12 volts that are
needed for various components.

I haven't used any of the DC equipment, except indirectly through clients
that are heavily telco oriented.

 Well I've been to one world fair, a picnic and a rodeo, and that's the
 stupidest thing I've heard come over a pair of earphones.  -- Major Kong
Sean Reifschneider, Member of Technical Staff <jafo at tummy.com>
tummy.com, ltd. - Linux Consulting since 1995: Ask me about High Availability

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