Path: utzoo!attcan!uunet!mcsun!sunic!draken!perand From: perand@nada.kth.se (Per Andersson) Newsgroups: news.sysadmin Subject: Re: Machine room design Message-ID: <2714@draken.nada.kth.se> Date: 13 Jan 90 13:09:32 GMT References: <13176@cit-vax.Caltech.Edu> Reply-To: perand@nada.kth.se (Per Andersson) Organization: Royal Institute of Technology, Stockholm, Sweden Lines: 35 In article <13176@cit-vax.Caltech.Edu> ktl@wag240.caltech.edu (Kian-Tat Lim) writes: >We may soon be able to design a new machine room. Are there any >generic (machine-independent) issues we should be sure to address? >Examples might include raised floor, adequate air conditioning, >earthquake resistance, cable trays, power outlet positioning, etc. I >think we have most bases covered; I'm just trying to make sure we're >not missing anything. Any suggestions, anecdotes, or warnings will be >helpful. I will summarize (not just batch together) any useful E-mail >replies. You don't mention what scale of money you have available, but: Some kind of stabs on the power can be a quite cheap protection against diverse moonphasedependant trouble. This catches small peaks and disturbances om your incoming power. A PDS (= Power Distribution System) can save you some trouble, by having sequenced powerup after a powerfail. This way you can give the disks power and time to aquire full speed before giving power to the machine ( of course you might have small machines with internal disks...) If the situation motivates it, an UPS is the way to go (UPS =Uninterruptible i think). These usually have batteries for 15 or 30 minutes of lost power. This at least gives you time to make a controlled shutdown. Quite expensive although. Per -- --- Per Andersson Royal Institute of Technology, Stockholm, Sweden perand@admin.kth.se, @nada.kth.se