hum, maybe it is about sensitivity, I think your RS is not giving enough good quality power to your smart one ... you can try is to lower the sensitivity value, can't remember the name of the parameter sensitivity ? :-) there was some smthg like H,M,L value for it ...
reinier : of course you try this at your own risk ! :-) 2009/9/22 Reinier Battenberg <[email protected]> > Hi, > > I have a bit of a problem with power. I am in a sort of > in-the-middle-of-a-real fix stage, so i know my solution isn't perfect. But > within its not-perfectness, here are my issues: > > > - My server pulls max 650W in an environment where power goes off for a few > seconds-30 seconds regularly. Initially I had a Smart-UPS 750 that was able > to deal with these intervals, with one exception. > I have apcupsd running as a deamon and the system will in worst cases > shutdown when there is X amount of time left in the batteries. The BIOS is > configured to start up when power returns. > Problem is: when power returns while the system is shutting down, the > system > seems to stay off. The BIOS never gets an event, so just shuts down the > computer. Shutting down takes about 3 minutes, which is quite a lot. So, > first question, how do you tell a shutting down machine that power is back, > and it is not shutting down anymore, but rebooting? > > > Secondly, we dont want these reboots. I can't buy an inverter with proper > batteries, so I bought a second UPS ( RS 1500) , and placed it in series > with > the first one. Its a bit cheaper, so i placed it before the SmartUPS, and > keep that one connected to the server over USB (and AC). > > This new UPS is not doing its job. If power goes off, it does switch to > batteries, but the Smart UPS that it is feeding in to, immediatly switches > to > batteries, too. I ran a few tests: > > With a disconnected RS1500 (no AC in) > - Connect the RS1500 to a moniter, and the monitor works. > - Connect the RS1500 to the second power-unit of the server. The led light > on > the server goes on, but on the server-side the power cable makes a funny > sizzling noise. > - Connect the RS1500 to the Smart-UPS, the smart-UPS does not charge from > the > RS1500 batteries, and you do hear the sizzling sound on the Smart-UPS side. > Also, the Smart-UPS indicates it has lost its power-source and it is > running > from batteries. > - The orange LED is lit on the RS1500, which means, we are on battery now. > There is no indication there is an overload. > > Plug the RS1500 in the grid > - Light goes green, and the sizzling sound disappears. > > Question: is my RS1500 actually helping my Smart-UPS to feed the server > with > power? (and do i just need to add more batteries?) Or do i have a problem? > > > > > The smart-UPS: > http://www.apc.com/resource/include/techspec_index.cfm?base_sku=SUA750I > > The not-so smart one: > > http://www.apc.com/products/resource/include/techspec_index.cfm?base_sku=BR1500I&tab=compare > > > > rgds, > > Reinier Battenberg > Director > Mountbatten Ltd. > +256 782 801 749 > www.mountbatten.net > > Be a professional website builder: www.easysites.ug > > > _______________________________________________ > LUG mailing list > [email protected] > http://kym.net/mailman/listinfo/lug > %LUG is generously hosted by INFOCOM http://www.infocom.co.ug/ > > The above comments and data are owned by whoever posted them (including > attachments if any). The List's Host is not responsible for them in any way. > --------------------------------------- > >
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