[ale] Collocating non-rackable boxen

[James P. Kinney III]

On Fri, 2005-07-08 at 01:31 -0400, Dow Hurst wrote:
> James,
> What UPSes do you purchase for the machines that run off of the 
> generator?  Or do you just use conditioner's?  My experiences with 
> generators would be that they would kick in, the power would be dirty, 
> and would require conditioning and usually more than that.  A real 
> dropout occurs between power blackout and the generator getting going so 
> a UPS is usually needed.  I've found the APC SmartUPS will play nice 
> with a dirty generator but that the Tripplite Smart UPSes would 
> sometimes not.  Thanks,
> Dow
> 
I have several APC monsters. As it turns out, the generator is not a
nice as it was advertised. It uses brush-style stators which are rather
AC noisy. As such, I had to turn the sensitivity down a notch on the ups
boxes. 

Just for the record, the $2k price difference between the 15kW air-
cooled and the 15kW liquid-cooled Generac systems is mostly in the
alternator itself. The liquid-cooled apparently uses brushless which is
a lot cleaner power than the brush style.

Too bad it was not something I found _before_ I installed the air-cooled
model :-(

I am looking at power line conditioners to add to the systems here
upstream of the UPS boxes.

> 
> James P. Kinney III wrote:
> >How big of a pipe do you need? I have recently added a 15kw automatic
> >backup generator to supply power to my micro-colo/hosting setup. I
> >currently have two DSL lines for an aggregate upload speed of 1.536Mb.
> >
> >
> >On Mon, 2005-06-27 at 16:51 -0400, John Wells wrote:
> >  
> >>Guys,
> >>
> >>For years, I've run a web server and email server out of my home over a
> >>DSL connection from a mid-tower (Athlon 900mhz, 512MB).  I've been happy
> >>with th experience and it has been enough to fulfill my needs and handle
> >>web sites for a few of my friends' companies as well.
> >>
> >>My only problem with this set up is power failures...everything about it
> >>has been very stable, but a power failure when I'm out of town quickly
> >>reveals its fragile nature.
> >>
> >>So, in the last two weeks, I've transitioned over to a virtual private
> >>server.  It's on a big AMD 64 bit machine and has a guaranteed amount of
> >>256 MB ram (with gigabytes worth of burstable ram), which sounds ok, but
> >>I'm starting to think it might be a little oversold.  It's slow at times,
> >>certain webapps (web mail like squirrelmail for example, which open a LOT
> >>of imapd connections) slow it quite a bit, and it's memory capabilities
> >>are suspect.  For example, with ab, I can crash Apache using 300
> >>concurrent connections for just 600 total attempts.  My old Athlon happily
> >>chugs along with three times this amount.  I've yet to crash it.
> >>
> >>So, I'm not so happy.  Ideally, I want my old server back but on a more
> >>reliable power supply.
> >>
> >>Is there a company out there that does affordable collocation of
> >>non-racked PCs?  I can't spend a lot (the VPS is $45/month), but would
> >>love to drop this guy somewhere with a reliable power supply and adequate
> >>pipe.
> >>
> >>Any suggestions are appreciated.
> >>
> >>Thanks!
> >>John
> >>
> >>_______________________________________________
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> >>Ale at ale.org
> >>http://www.ale.org/mailman/listinfo/ale
> >>    
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> >>
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> 
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-- 
James P. Kinney III          \Changing the mobile computing world/
CEO & Director of Engineering \          one Linux user         /
Local Net Solutions,LLC        \           at a time.          /
770-493-8244                    \.___________________________./
http://www.localnetsolutions.com

GPG ID: 829C6CA7 James P. Kinney III (M.S. Physics)
<jkinney at localnetsolutions.com>
Fingerprint = 3C9E 6366 54FC A3FE BA4D 0659 6190 ADC3 829C 6CA7
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