What to Expect when Calibrating APC UPS
Posted on 2011-10-20
This is probably going to be a stupid question and make you smile, but I'd feel better confirming.
We have two rather new (less than a yr old) APC UPS's (One for Each Server) that are not behaving as I believe they should. DC server = APC Smart-UPS 1500 w/34% load and the Terminal Server is attached to the APC Smart UPS Model 750VRM2U with only 10% Load
I did see another post here about this but from what I can understand his post incomplete, he did not get the answer he was really looking for from APC. I want the Servers to be able to continue to run on Battery during a power Outage for at least 10 to 15min to see if the power will return before shutting down the servers which is the reason I purchased large UPS. I've played with the Power Chute settings and delay.. Servers are both shutting down at the same time with in a minute that the UPS goes on Battery. Any how.. I called APC on this issue and he felt I first need to Calibrate the UPS to get the accurate Run Time for the Loads on each.
My Question is: What can I expect when doing a Calibration using Power Chute from each Server? Should I be doing this only when Server is not in Active Use? I was planning to turn off all the Event Actions that would activate the Shutdown Sequence before starting,Such as the Battery Low Event, but I'm wondering if and when the Batteries are deeply discharged that at anytime will the Servers lose power and cause them to shutdown without much notice.