Re: OT: servers vs. lightning and power outages
On Tue, Mar 15, 2011 at 01:58:00AM +0100, Jerome BENOIT wrote:
> Hi !
>
> On 15/03/11 01:31, Stan Hoeppner wrote:
> >Jason Hsu put forth on 3/14/2011 1:31 PM:
> >>How do you protect servers from lightning?
> >
> >During facility construction:
> >www.erico.com/public/library/fep/LT1421.pdf
> >
> >>What backup power sources do you use to keep them running during power outages?
> >
> >Generally, one Smart-UPS RT 10KVA RM per rack of 3U/2U/1U servers, UPS
> >at the bottom, servers above.
> >http://www.apc.com/products/resource/include/techspec_index.cfm?base_sku=SURT10KRMXL6U-TF5&total_watts=1000
>
> Just curious:
> why the UPS must be at the bottom ?
>
Probably because they're really heavy. I had a server rack on wheels,
and a UPS which had a shipping weight of 172 lbs. No way was I putting
that anywhere but the bottom of the rack, for stability reasons.
-Rob
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