Re: UPS configuration!
From: Rick F (rick.REMOVE_at_rdfts.REMOVE.com)
Date: 03/05/05
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Date: Sat, 5 Mar 2005 09:07:48 -0600
Yeah probably nothing will happen if I pull the plug but I figure it doesn't
hurt to be cautious and flip the breaker or power strip instead.
-- Rick Faria - MCSE / A+ RDF Technical Services - www.rdfts.com Email: support at rdfts dot com "Jim Behning SBS MVP" <jimbehingmvp@mindspring.com> wrote in message news:a9sg219hove6kj68n1m7vkde21sah89q1u@4ax.com... > It may be possible that the electician is arguing that the earth > ground is missing when you unplug the ups from the wall. When you flip > the switch on a surge protector, all you are doing is breaking the > mains or hot leg, but not the earth ground. If you still have the > earth ground when you present your server with that high static charge > from you synthetic carpet, the earth ground might carry the energy > away without harm. With no earth ground that energy might jump in to > server components. I think the correct terms are gounded and grounding > in the US electric code but I can never remember which one white is > and which one green is. Neutral (white) is a misnomer. > > "Matt Gibson" <mattg@blueedgetech.ca> wrote: > >>While he's right, the server will see no difference between you pulling >>the >>plug, or you tripping the breaker. >> >>It's not important, nor will data corruption occur. >> >>The Output side is isolated from the input side. >> >>Matt Gibson - GSEC >> >>"Rick F" <rick.REMOVE@rdfts.REMOVE.com> wrote in message >>news:eLqJqkGIFHA.1392@TK2MSFTNGP10.phx.gbl... >>> Pulling the plug is done by probably most individuals. But I was talking >>> to a electrician once and he said that is not a good thing to do. You >>> should plug the UPS into a power strip and flip it off or trip the >>> breaker >>> for that outlet. He said if you pull the plug then there is no reference >>> to ground. If you leave it plugged in but kill the AC, then it is still >>> grounded. I am no electrician but he made it seem that it was important >>> and could be possible to cause data corruption. Ever since that >>> converstation, I don't pull the plug. Figure it is better to be on the >>> safer approach then not. >>> >>> -- >>> Rick Faria - MCSE / A+ >>> RDF Technical Services - www.rdfts.com >>> Email: support at rdfts dot com >>> >>> >>> "Jeff Teel" <jdteel@sugardog.com> wrote in message >>> news:uByblRGIFHA.2752@TK2MSFTNGP12.phx.gbl... >>>>I have looked over the posts on how different ones have set their backup >>>>devices. After seeing the settings on my UPS I have a question about an >>>>area that I haven't seen anyone discuss. I have an APC Smart-UPS 1500 >>>>with >>>>one server attached to it. There is also a monitor but it will be off >>>>99.9% of the time so it should be a non factor. >>>> >>>> When looking at the Risk Assessment screen of the PowerChute software >>>> it >>>> has a yellow warning icon beside the Application Shutdown category with >>>> my server name under it. The remainder of the tests that were done all >>>> had green check marks beside them. The warning seems to be pointing to >>>> Shutdown Sequence under the Shutdown category. What should the shutdown >>>> delay and sequence be set at and how would you describe each of the two >>>> settings? >>>> >>>> I've read some posts that mention to do allot of testing before leaving >>>> the UPS on it's own. Would simply unplugging the UPS from the socket >>>> simulate a power failure or is there another way to test the settings >>>> that have been made? >>>> >>>> Thanks To All >>>> Jeff >>>> >>> >>> >> > > Jim B. SBS MVP
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