Hugh McIntyre wrote: > Dennis Clarke wrote: > >> Nothing can replace batteries. The more the better. >> Most power solutions should grant at *least* 30 minutes on battery and if >> not then I would not host my gear there. I just finished installing a 45 >> minute battery runtime solution with 16,000 VA of power. It is not that >> costly really to stick in an APC Symmetra SY16K unit when one looks at the >> cost of downtime. >> > > Most datacenters consume a *lot* of power. Just how many lead-acid > batteries can you fit in one building? (There are probably safety and > weight issues, plus density problems if every other rack in your > datacenter is a UPS). > > The best I've seen was the central telecommunications hub of a country I shall not mention which had 48 hours of battery backup. That was a lot of batteries and yes, it was on the ground floor!
Ian _______________________________________________ opensolaris-discuss mailing list [email protected]
