Server room power engineering

Joel Jaeggli joelja at darkwing.uoregon.edu
Wed Oct 16 11:13:06 EDT 2002


On Tue, 15 Oct 2002, Ken Chase wrote:

> On Tue, Oct 15, 2002 at 01:55:38PM -0400, Joseph Mack's all...
> > "Robert G. Brown" wrote:
> > > 
> > > Dear Listvolken:
> > 
> > a few years ago, at the place I worked, all the machines
> > were behind a UPS and the whole floor went out one day. We found that
> > the UPS had been setup to drop power to all the downstream
> > boxes, when its feed died. 
> > 
> > The explanation we got was that it had been 
> > setup that way so we'd know that the power had failed, 
> > otherwise all the machines would be running on the UPS
> > without any input power and we'd be living with a 
> > false sense of security.

what's the point of a ups that doesn't stay up when the power goes down?
at that point you've bought an expensive line conditioner.
 
> How do you get a false sense of security when the klaxons are ringing
> so loud you cant even hear yourself think?
> 
> At least thats how ours works.
> 
> /kc
> 
> > 
> > Joe
> > -- 
> > Joseph Mack PhD, Senior Systems Engineer, SAIC contractor 
> > to the National Environmental Supercomputer Center, 
> > mailto:mack.joseph at epa.gov ph# 919-541-0007, RTP, NC, USA
> > _______________________________________________
> > Beowulf mailing list, Beowulf at beowulf.org
> > To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
> 
> 

-- 
-------------------------------------------------------------------------- 
Joel Jaeggli	      Academic User Services   joelja at darkwing.uoregon.edu    
--    PGP Key Fingerprint: 1DE9 8FCA 51FB 4195 B42A 9C32 A30D 121E      --
  In Dr. Johnson's famous dictionary patriotism is defined as the last
  resort of the scoundrel.  With all due respect to an enlightened but
  inferior lexicographer I beg to submit that it is the first.
	   	            -- Ambrose Bierce, "The Devil's Dictionary"


_______________________________________________
Beowulf mailing list, Beowulf at beowulf.org
To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf



More information about the Beowulf mailing list