There are some members of the list that would do well to give this document a quick (or preferably comprehensive) going over.
http://www.catb.org/~esr/faqs/smart-questions.html I'm not usually a sarcastic bastard (ok, well yes perhaps I am), but if you actually ask an intelligent question, you might/may/often do get an intelligent answer. This list is a veritable goldmine of knowledgeable people who often have the answers, but if you fail to take the time to do your homework, want your hand held, or generally fail to give even the slightest shred of useful context in your question you will find that it's not possible for anybody to give a useful reply, and thus it gets left to people like me to provide acidic, sarcastic attempts at witticism. I know I'm beating my head against a wall here, and that the status quo will remain, however if my little pointer and rant succeeds in helping one person then I consider it worth the time, effort and cred-sticks to compose. Now, back to the Booze, Birds and Karaoke. Speaking of questions, I have a store room I'm planning on converting into a Server cupboard. It's 53 cubic feet (about 5 Cubic metres), has a single double glazed window with a 14 inch x 23 inch opening (perfect for a 5000 BTU window air conditioner). My equipment it going to sit between 3000-4000 BTU heat output (calculated from a couple of heatload calculators on the web). I have a single 13A outlet available and my server gear draws about 1200w (about 5A). So allowing a safety margin I have about 5A available for some form of A/C unit. I have been completely unable to source a 5000 or 6000 BTU window A/C in Dubai. They all make them, but nobody imports them. So I'm back to using a 9000 BTU portable unit. Now my calculations are that the heatload and room thermal inertia are such that the compressor cycling will likely kill the unit in fairly short order, but at the moment that's a risk I'll have to take. I can't install a split unit as I have a light well outside my window, and the room has floor-slab solid concrete walls (took me an hour to drill 2 12mm holes for power and network). Aside from a portable unit, has anyone a) seen any 5000 BTU window units in dubai or nearby areas, or b) had experience with short duration compressor cycling on server room areas with low thermal inertia, and c) had any experience with some way of raising the thermal inertia in a room? For c) I thought about a large mass of water attached to some form of water-to-air radiator such that the water forms some part of the rooms thermal mass. To keep some form of Linux relevance, I have an electro-mechanical industrial thermostat wired to one of the server serial ports, interfaced to the ups daemon. When the room goes over temp the machine thinks the UPS is on battery (I don't actually have a UPS yet) and thus can give me a clean shutdown in times of A/C failure. B -- "Human beings, who are almost unique in having the ability to learn from the experience of others, are also remarkable for their apparent disinclination to do so." -- Douglas Adams ------------------------ Yahoo! Groups Sponsor --------------------~--> Most low income households are not online. Help bridge the digital divide today! http://us.click.yahoo.com/I258zB/QnQLAA/TtwFAA/0XFolB/TM --------------------------------------------------------------------~-> Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dubailug/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
