On Fri, Apr 27, 2001 at 12:05:11PM -0500, Dimitri Maziuk wrote: > On Thu, Apr 26, 2001 at 05:32:31PM -0700, Alvin Oga wrote: > ... > > - even if you had 2 power supplies... > > - most motherboards only has one atx power connector > > True. And if you went for redundant PS's and a mobo that > supports them, the cost would go way up. > > > - are the two power supplies properly doing load sharing... > > Usually not. I imagine that's too hard and not worth the trouble > anyway: what you usually want is redundancy, not load sharing. > (I mean, if one PS dies, it will overload and kill the other one > pretty fast. Not a good idea. And if each PS can handle the load > alone, there's little point in sharing the load.) Every production server that I've seen that has 2 PSUs has both continuously running. At hopefully < 50% capacity. There is no switch-over - if one goes then the other has to cope with both. Of course, the irony is that as they are both routed to the same power inlet, if the fuse in the plug goes then you're buggered anyway! :-) Matthew -- Matthew Sackman Nottingham, ENGLAND Using Debian/GNU Linux Enjoying computing
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