Re: [SAGE] Greener Machine Rooms: Cooling?

[Richard Chycoski <rskiadmin@chycoski.com>]

That DC with the 40" raised floor was on top of a small mountain. It 
just so happened that there was a spring that came up in the corner of 
the room (yes, at almost the peak of the mountain), and although weak 
and infrequent, at one point put about a foot of water under the raised 
floor.

Very exciting, especially when the 208V/400A Russell&Stoll mainframe 
power connector (among many others!) were lying on that floor - *two* 
sump pumps were added to prevent a recurrence. Those old R&S connectors 
were built and sealed quite well - no one (or thing) got fried, but it 
took a while to clean up and dry out.

Yes, water is a problem - even where you'd least expect it!

- Richard


Brad Knowles wrote:
> At 9:19 AM -0800 11/2/06, Richard Chycoski wrote:
>
>>  If you have more typical underfloor clearance, you need to also be
>>  concerned about what else is under the floor - the cables and pipes.
>
> And when it comes to cabling under floor, don't forget that you have 
> to be careful about flooding.  You really, really don't want to have 
> even the remotest possible chance of flooding a computer room with a 
> raised floor and power cables under the floor.
>
>
> There's a really cool story about the Network Manager of AOL coming 
> into the back door of what was then the single computer room one night 
> back in the early 90s when there had been a lot of rain, and 
> discovered that there was about two feet of water *above* the raised 
> floor, with another 18" of water beneath, and having to climb from 
> rack to rack in order to get to the Emergency Power Off switch by the 
> front door.
>