nanog mailing list archives
RE: rack power question
From: "John Lee" <John () internetassociatesllc com>
Date: Tue, 25 Mar 2008 08:46:11 -0500
Paul, Using a multi-stage filter system with the large partical filters in front and an ionizing stage to remove smaller but still large enough particals to cause dust. Clean room filters would be an overkill. John (ISDN) Lee ________________________________ From: owner-nanog () merit edu on behalf of Paul Vixie Sent: Tue 3/25/2008 2:17 AM To: nanog () merit edu Subject: Re: rack power question this has been, to me, one of the most fascinating nanog threads in years. at the moment my own datacenter problem is filtration. isc lives in a place where outside air is quite cool enough for server inlet seven or more months out of the year. we've also got quite high ceilings. a 2HP roof fan will move 10000 cubic feet per minute. we've got enough make-up air for that. but, the filters on the make-up air have to be cleaned several times a week, and at the moment that's a manual operation. mechanical systems, by comparison, only push 20% make-up air, and the filters seem to last a month or more between maintainance events. i'm stuck with the same question that vexes the U S Army when they send the M1A1 into sandstorms, or that caused a lot of shutdowns in NYC in the days after 9/11: what kind of automation can i deploy that will precipitate the particulates so that air can move (for cooling) and so that air won't bring grit (which is conductive)? -- Paul Vixie
Current thread:
- Re: rack power question, (continued)
- Re: rack power question Deepak Jain (Mar 25)
- Re: rack power question Paul Vixie (Mar 25)
- Re: rack power question chuck goolsbee (Mar 25)
- Re: rack power question Petri Helenius (Mar 25)
- Re: rack power question Paul Vixie (Mar 25)
- Re: rack power question William Herrin (Mar 25)
- Re: rack power question Paul Vixie (Mar 25)
- Re: rack power question Petri Helenius (Mar 25)
- Re: rack power question Dorn Hetzel (Mar 26)
- Re: rack power question Petri Helenius (Mar 26)
- RE: rack power question John Lee (Mar 25)
- Message not available
- Re: rack power question Paul Vixie (Mar 25)
- data center loading (was:Re: rack power question) Lamar Owen (Mar 26)
- Re: data center loading (was:Re: rack power question) Robert Boyle (Mar 26)
- Re: rack power question Joe Greco (Mar 22)
- Re: rack power question david raistrick (Mar 22)
- Re: rack power question Patrick Clochesy (Mar 22)
- Re: rack power question Tony Finch (Mar 26)
- Re: rack power question Martin Hannigan (Mar 28)