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Building Rackmount Cabinet for Home Use?
Timothy M. Schumann asks: "I am trying to build a small rack mount cabinet for my family to help with the clutter of our home network. I don't want to purchase a rack or cabinet pre-manufactured; I would like to build my own. However, I have been unable to find a list of physical specifications that racks and cabinets must conform to when built, so I was wondering if any Slashdot readers could help me find such information? Just for a frame of reference, I'm looking for something along the same detail level as the BTX form factor specs that can be found here. Any input on cost effective hardware choices for rack mountable UPSs, switches and/or cases is also welcome." This topic was originally discussed some two years ago, and while there was some useful information was presented, the basic question wasn't really answered. If you were going to try and build a custom rackmount enclosure for yourself (or someone else), how would you go about doing it?
Some day you are going to want to move. Buy an Anvil or equivalent case on eBay with rack rails pre-installed, and wheels.
I went to IKEA and bought a cheap-o entertainment cabinet. Nice black finish, smoke glass door on the front, and cheaper than I could have bought the parts for to build my own.
I never installed the castors, and as that puts the bottom right on the floor it easily handles the weight of my large UPS. The only problem is no rails, but I've put everything on shelves... it's only for home, after all.
Try here for reasonably-priced rackmount rails. They aren't really quite proper for computers, though.
I also have a catalog from Hammond Manufacturing which sells racks piece-by-piece, including rail sets. Their catalog shows a lot of detailed schematics for their racks, as well. You can get a catalog free from their web site.
I use a couple old HP half-height racks (really using only 1 right now, 1 more sitting around). They aren't deep enough for proper cases, though, so I use shallow cases for now.
I'm planning to do the same thing as you, at some point. I've considered some $300 racks off eBay and the normal $250 shipping, but I'd rather build a nice wood-exterior cabinet that would look good in the home. Besides, I need something that is closer to 'normal' specs than the racks I have now. Rack hardware: I'd stick to eBay. Shelves, blank panels, etc. are all much cheaper that way. I also bought a rackmount APC UPS--look for one WITHOUT batteries, and shop around online for replacements. You will pay less for shipping all around, and the batteries are usually crap anyway, unless it's a trustworthy seller who says they put new batteries in it. For cable management, I prefer a simple lacer bar, unless you really have a ton of equipment. Of course, if I had money, I'd get rails and cable management arms...but I was doing good to buy the rackmount cases, as the rest was (mostly) free for me. For rackmount computer cases, I've used Case Outlet for a while. They barely speak English, but they resale decent cases at decent prices. If you are using any kind of multi-drive enclosure or removeable drive racks, be sure to gett the DEEP cases! You can also try KRI Computer for rackmount equipment. I've never bought from them before, but I've heard good things about them, and they have good prices and a good selection. Welcome to the world of Ultimate Geekdom!
How you going to handle heat and air cirulation. I see some of these answers about closets and cabinets and can just feel the heat build up. Telco racks are cheap and offer lots of air circulation. Have deep servers that need front and back mounting then use two telco racks. We mounts Suns that way all the time. If telco racks are to tall they are easy to cut down, but there are also lots of accessories for them like shelves, keyboard drawers, cable management guides, and etc. Plus easy to take apart and move it necessary.
I purchased a wire shelving unit on wheels from the Container Store. I keep the rack in my closet. When I need to get to the wiring, the entire unit rolls out. Total cost was about $150 US.
Michael.
Linux : Mac
actually, for those of us in the Northeast, it would be cool to vent it out to an ajoining room to get some of that heat.
Same thing up here in frigid Ottawa, Canada.
My servers and my main workstation are in the furnace room, adjacent to a cold air return duct on my forced-air furnace. Their heat is dragged out of the furnace room and distributed throughout the house.
I'm actually considering getting together about 30 computers to heat the house this winter. Given my furnace's estimated 70% efficiency and the cost of electricity ($0.043/kWh) and oil ($0.47/L), it's cheaper. I also calculated the heat output per unit of each fuel. I could just use baseboard heaters, but the electricity may as well do something useful (distributed clients?) on its way to becoming heat.
While my main workstation is in the furnace room, my home office is in an adjoining room. I simply put a small hole in the wall for the VGA, audio, keyboard, mouse and Palm cables. It's effectively silent in here now.
Fire and Meat. Yummy.
That's exactly what I did. I got the quietist bathroom fan I could afford, and an old electric base board thermostat. I took the thermostat and inverted the temperature element so it would come on when it got hot instead of cold. After a little fiddling with the setting I got it to come on at about 90 degrees Fahrenheit. On average the fan only runs about 10 minutes every hour, and keeps the closet temperature just fine. Total cost, about $65 US (not including the tools I already had). The only downside I can find to the set up is administrating the two servers in the closet. Most of the time I can ssh into either box, but if something goes wrong and I have to hook up a monitor it's a real pain. Other than that it's great.