Re: ups makes
- From: "Bartram, Chris (Contractor)" <CBartram@xxxxxxxxxxxxxxxx>
- Date: Tue, 13 Sep 2005 11:52:29 -0400
We've moved almost exclusively to APC units. We have over 75 of them in
various sizes, from 1400 Watt units up to a pool of 4 120Kw Silicon
high-availability UPSes, as well as a couple of their high end racks
with special exhaust fans and dozens of MasterSwitches and PDUs. Just
about every make and model of SmartUPS and above.
We also have an older 30Kva and a 75Kva Liebert unit in one of our
datacenters, but are planning to replace them with APC Silicons next
year.
Though you won't likely get a 3000 to recognize the shutdown signals
from anything but the feature-lacking PowerTrust units, for anything
else I prefer APCs. They also have a very nice web-based application to
help you size the UPS you need;
http://www.apc.com/tools/ups_selector/index.cfm?lid=Go%20to%20the%20UPS%
20Selector
If you plan on powering more than one device with the UPS, go with a
network management card. APC provides a free network-shutdown client
that will run on most OSes and allows the UPS to signal the computers to
shut down cleanly before battery power is exhausted in the event of an
extended power outage. For a single UPS-Device, the built in serial
ports suffice, and you can install their included PowerChute software to
communicate with the UPS.
To get even more bang for the buck, upgrade from the standard network
card to their environmental monitoring card, where you can monitor temp
and humidity (plus several open or closed contact switches) and send
alarms via email or SNMP if thresholds are exceeded (we use HP OpenView
NNM to monitor ours, but also use their built-in email alerts). I have
one of our cards hooked up to several under-the-raised-floor water
sensors in case one of the HVAC units springs a leak (it's saved use
SEVERAL times).
Their tech support is also very good; especially the critical support
line available to Silicon customers (I ALWAYS get connected DIRECTLY to
a Silicon expert when I call!). Standard (web based) tech support is
free and I've also used it often over the years and have always gotten
good and timely responses. (When I get HP support service phone surveys
and they ask for any examples of BETTER support services, I usually
quote APC.)
When the warranty does run out though and the batteries do finally run
down (the units will let you know when the batteries go bad) you can
often get a better deal on (new) replacement batteries at
www.refurbups.com . They sell new batteries for almost all APC models at
close to half the list price. I just replaced the batteries in my
SU3000XL rackmount UPS at 3k and was very happy with their
responsiveness and price. (You can replace the batteries in most of the
modern APC UPSes without powering them down - or interrupting power to
the devices you're powering).
HTH (and no, I don't get a commission from them!)
-Chris Bartram
> -----Original Message-----
> From: HP-3000 Systems Discussion [mailto:HP3000-L@xxxxxxxxxxxxx] On
Behalf
> Of john pitman
> Sent: Tuesday, September 13, 2005 12:58 AM
> To: HP3000-L@xxxxxxxxxxxxx
> Subject: [HP3000-L] ups makes
>
> Does anybody have any recommendations for/against any particular makes
of
> ups (10kva range) they can share with me please? Our Sola didn't seem
to
> do
> the right thing for us lately, and looking around for a newer and
bigger
> unit.
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