Re: Auto-update versus "going green"

[Alan Amesbury <amesbury () OITSEC UMN EDU>]

Parker, Ron wrote:

> That is what we do. We wake the machines up every Thursday night at
> 11:00 to install patches, updates, etc. It is a strange sight to be
> here late at night and see all the lab computers come on.
[snip]

Any idea what the inrush current does when all the machines power up 
simultaneously?  I've noticed that some of the newer Dell servers (the 
R410, for example) have the ability to randomly sleep before 
automatically powering up after power loss.  The goal is to prevent a 
bunch of systems from powering up simultaneously and generating a huge 
inrush current; staggered starts are safer.

I suppose if you only have a couple computers per circuit it doesn't 
matter, but some labs might be higher density than that.


--
Alan Amesbury
OIT Security and Assurance
University of Minnesota