On Fri, 2009-09-04 at 15:08 -0400, Rob Cherry wrote: > I am working on a brand new IT room for around 4 high (12kw?) power > racks and 2 wiring racks. I was talking to the obvious choice - > Liebert - and they came back with a fairly eye watering quote that > made me question whether they are the only game in town. During my > research I fell across two companies - Rittal for cooling and Rittal's > rebadge of Eaton technologies Powerware line of UPSes. > > Rittal seem to have an extremely interesting product called the "LCP" > which is a liquid cooled 11" wide blower unit that sits in between 2 > racks and blows cold air across the faces of both adjoining racks. It > then sucks the hot air from the back of the servers. It is able to > operate in a variety of closed or open loop configurations - you can > leave the faces of the racks open/meshed and blow cold air into the > room, whilst leaving the backs of the racks closed/glass door to suck > hot air in. If you need to go blade server crazy (30kW+ racks) you > can go closed face front and back, and have a rittal unit on both > sides of the rack. For those that are interested I found this PDF - > http://www.equipmentprotectionmagazine.com/images/rittal-2.pdf. > Reading between the lines it looks like around $11.5k for each unit, > but I havent managed to get any real pricing out of them yet. > > On the power side, the Eaton Powerware 9390 > (http://powerquality.eaton.com/Products-services/Backup-Power-UPS/9390.aspx) > looks like a reasonable competitor to the Liebert NX UPS. Beyond that > I have zero opinion on it. It seems like a good tool to beat Liebert > over the head on pricing, but the reseller claims it is more > efficient/moderner/betterer so maybe it is worth taking seriously. > Curious to know if anyone has nice things to say about them.
Rob, I have a 9390 and love it. Benefits for our situation are that if can be put right up against the wall (APC needed space around it) and the load does not have to be perfectly balanced between the phases. I like it much better than the APC unit we had. cheers, ski -- "When we try to pick out anything by itself, we find it connected to the entire universe" John Muir Chris "Ski" Kacoroski, [email protected], 206-501-9803 or ski98033 on most IM services _______________________________________________ Discuss mailing list [email protected] http://lopsa.org/cgi-bin/mailman/listinfo/discuss This list provided by the League of Professional System Administrators http://lopsa.org/
