Brian Mathis <brian.mat...@gmail.com> writes: > I think you missed the point there. ALL of the risk is to *your > business*, so you're the one who needs to mitigate it. When you go > this route you also need to be monitoring the total circuit usage and > if you see spikes or the general water mark getting too high, that's > your cue to get a higher capacity circuit or move some systems to > other circuits.
see this is what I'm trying to avoid. Oversubscribing power has serious negative consiquences, and if I can get it cheap enough that I don't have to oversubscribe, I will potentially be providing a more valuable service, with less work for me, than I would be if I were oversubscribing. > You definitely need to be aware of the max possible draw of each > device, so you know how much you can oversell each circuit, and based > on your initial description, you're running a low margin business and > there you must rely on walking that thin line. My hope was that I could figure out a way to not oversubscribe that circut. e.g. you have 1/4th of that circut, and you can't use more. (if you go over, your breaker blows.) This way, I don't need to worry about how much each piece of equipment works. If your ports exceed your power draw, your ports get shut off. I've lowered my cost (meaning I can lower my retail price) and the end user experience is a lot more like what they'd get with a full circuit, e.g. if I oversubscribe power, your uptime is a /lot/ more dependent on my compitence in managing that oversubscription than if I hard partition the power. > As already mentioned, you can get smart PSUs and some of them have the > ability to shut down systems based on priority, in case someone goes > over. There's probably a feature to shut down on specific port usage, > but I would only activate that if you were in an "over" situation. Yeah. from what others have said, the PDU is the way forward, rather than seperate circuit breakers, even if I want to automatically shut people off when they exceed the threshold. _______________________________________________ Tech mailing list Tech@lopsa.org http://lopsa.org/cgi-bin/mailman/listinfo/tech This list provided by the League of Professional System Administrators http://lopsa.org/
