Brunner, Brian T. wrote: > centos-bounces at centos.org wrote: >> On 7/1/2011 10:59 AM, Robert Heller wrote: >>> >>> APC UPSes are supported by apcupsd. Other brands, not so much. Some >>> (read: cheaper models) have their own special protocol and don't >>> include Linux support. These solutions are intended for the cheaper >>> or otherwise 'unsupported' UPSes. It *sounds* like the OP does not >>> need something smart and is probably looking for something cheap. >>> >> >> And the APC Smart-UPS 750 units are not all that expensive >> either. Even the 1500VA units are a lot less expensive then they were > > 5-10 years ago. $250-$300 to protect $2000-$6000 worth of hardware is > worth it in my book. > > To what extent does a UPS *protect* the hardware? > Maintaining up-time during brief brown-outs is one thing I expect of a > UPS,Orderly shutdown is another thing I expect of a UPS. > > *protection* of the PC from irregularity in the AC Mains by a UPS, > however, I question. > Rather, it seems, any power irregularity that would kill a PC by > propagating through the PSU will also propagate through the UPS. > > NO UPS MADE TODAY (according to my reading of the stats on > advertisements) eats lightning strikes and asks for more. > > So per your experiences and greater technical savvy: What PSU/PC kill > power irregularities will be stopped by which UPS? Really? That's what you read in the specs? Here, I thought that good quality surge protectors would do that, and my UPS does says surge protection as well as UPS. IIRC, UPSs, and better surge protectors, offer a multi-thousand dollar warranty if it doesn't stop a large surge and your system's fried. I *think* I have one of these, <http://www.cyberpowersystems.com/products/ups-systems/soho-ups.html>, which they say is suitable for SOHO usage... and you notice the "connected equipment guarantee" (CEG): between $25k USDand $100k USD, depending on model. mark