Raised Floors

[Wayne S]

All true. Just sayin' that water can get into the DC even when it's not intended. 
When fighting a fire in another part of a structure, the water may find it's way into the DC.  

Not sure about not allowing water to get near a dc, can you explain that statement?
The 2 Liebert a/c units that cooled the DC were located inside the room and were water cooled so there was water around. I also remember the old IBM 3032 computers at my first site needed chilled water to operate so there was a lot of piped water going into the room. 

The FD did regular inspections and it didn't seem to bother them in either case.
Funny, but Halon is outlawed and having it around did seem to bother them. It was replaced with some other gas system that i can't remember the name.



> On May 22, 2019, at 12:43 AM, Jim Manley via cctalk <cctalk at classiccmp.org> wrote:
> 
> No firefighter in their right mind is going to knowingly pump a drop of
> water anywhere near or in the direction of a data center, let alone into
> it.  That's why they're equipped with Halon or other oxygen displacement,
> cooling, and flame suppression systems, and the FDs are equipped with
> appropriate Class 2 (Electrical) firefighting equipment.  FDs conduct
> periodic inspections of all on-site fire-fighting equipment and the local
> station shifts do walk-throughs to review their procedures.  If any
> hazardous materials are present (guaranteed in a DC), they're also taken
> into account.
> 
> The FDs that serve industrial sites are equipped to fight fires where the
> fuels can range from paper through plastics, up to actual petrochemical
> fuels.  I worked in the last semiconductor fab still operating in Silicon
> Valley and worked with the City of Santa Clara FD on their plans, which had
> to deal with the presence of extreme toxins and corrosives such as
> hydrofluoric acid used to etch silicon wafers. They used to be responsible
> for the Intel fab next door until it was shut down and the fab in
> Hillsboro, OR, took over all R&D production.  They said it was a nightmare
> waiting to happen because of the volume of extremely hazardous chemicals
> used on-site.
> 
> Someone should be sued and go to prison for signing off on permits that
> would allow water to get anywhere near a DC - it's a violation of the
> National Electric Code, for starters.  If anyone sees something like that,
> it should be reported immediately, and not within the organization, since
> the facilities people are either incompetent or complicit in keeping quiet
> about it.  That's what anonymous.hotlines are for, and the media, if no
> action occurs with the hotlines - we're talking about the possibility of
> serious injury and death here.
> 
> 
> On Tue, May 21, 2019 at 11:12 PM Grant Taylor via cctalk <
> cctalk at classiccmp.org> wrote:
> 
>>> On 5/21/19 5:33 PM, Craig Ruff via cctech wrote:
>>> The NCAR Wyoming Supercomputer Center has raised floors of about 20 feet.
>> 
>> Did the support posts go all the way down?  Or was there some sort of
>> grid work that supported the raised floor above an open area that
>> contained the PDUs?
>> 
>> I ask because the PDUs in the DC in my office are wider (and longer)
>> than a floor tile.  As such, it would require some special
>> accommodations if the support posts were 20 feet tall.
>> 
>> 
>> 
>> --
>> Grant. . . .
>> unix || die
>>