+1 on the APC's melting/overcharging batteries for no apparent reason. Seems to be a built in 'feature' of the APC units so they can get you to buy more. Never had that problem with the Tripplites and battery life is much much longer.
> -----Original Message----- > From: Glen Johnson [mailto:[email protected]] > Sent: Tuesday, February 10, 2009 8:15 AM > To: NT System Admin Issues > Subject: RE: UPS recommendations > > We've got several APCs, and some Tripplites. > My complaint with the APCs is they seem to over charge their batteries. > We've replaced many batteries where they were swollen and had leaked. > Maybe 3 to 4 years old and had not had more than an hour or two total > battery run time. > So far the Tripplites have not had that problem and cost seems to be > about the same. > We haven't gotten into bigtime management yet. We set up the software > on one server, after 2 minutes on battery, a batch files is fired that > shuts down all the servers in the rack, except the one directly > connected to the UPS, then after 7 minutes the ups connected server > shuts down and then at 10 minutes the UPS shuts off. > So far that has worked well for us. > > -----Original Message----- > From: Ben Scott [mailto:[email protected]] > Sent: Monday, February 09, 2009 11:57 PM > To: NT System Admin Issues > Subject: UPS recommendations > > Hi all, > > We had a power outage today. I looked over at the server rack just > in time to see one of the UPSes light up like a Christmas tree, shriek > like an injured parakeet, and then kill itself. (Admitted it was old, > but a graceful failure this was not.) The servers with redundant > supplies failed over to the other UPS, which promptly went into > over-current alarm and dropped the load. Either said UPS's management > software has been grossly misreporting its load, or two UPSes at 40% > load doesn't include enough margin during transfer. Any which way you > slice it, it's time to buy some new UPSes. I'm going to ask for two > entirely new 1400 or 2200 VA units (existing were 1000 VA), although > budget may be an issue. > > What do people like for UPSes, *and why*? I don't see much > variation across manufactures in a given price band. At a given > dollar amount, it seems I get roughly the same capacity, features, > etc. I'm thinking differences in management software and quality of > support don't show up in a spec sheet. Comments on that front are > especially welcomed. > > In particular, I'm interested in how to manage a multiple-server, > multiple-UPS scenario. Our two biggest servers have redundant > supplies. I'd like to plug each supply into a different UPS. So each > UPS will be powering multiple servers, and each server will be drawing > power from multiple UPSes. I imagine that makes the management > software configuration a bit trickier, specially since a lot of > management packages used to assume one-UPS-per-server. > > -- Ben > > ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ > ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ > > ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ > ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~
