[ale] Linux Cluster Server Room

[Dow Hurst]

Thanks Jonathon!  That is exactly the kind of ballpark I needed!  I don't need
the vendors right now as we are still kicking around ideas.  If anyone would
throw some specs or ideas out there, I'd appreciate it.  Here is a quick
question?  Is planning for double your planned load a good rule?  I would
think that would be a good idea.  How about backup cooling if the main unit
dies?  The firesafe is one I had not thought of.
Dow


Jonathan Glass (IBB) wrote:
> How big are the Opteron nodes?  Are they 1,2,4U?  How big are the power
> supplies?  What is the maximum draw you expect?  Convert that number to
> figure out how much heat dissipation you'll need to handle.
> 
> I have a 3-ton A/C unit in my 14|15 x 14|15 server room, and the 24-33
> node cluster I just spec'd out from IBM (1U, Dual Opterons) was rated at
> a max heat dissipation (is this the right word?) of 18,000 BTU. 
> According to my A/C guy, the 3-ton unit can handle a max of 36,000 BTU,
> so I'm well inside my limits.  Getting the 3-ton unit installed in the
> drop-down ceiling, including installing new chilled water lines, was
> around $20K.
> 
> I do have sprinkler fire protection, but that room is set to release its
> water supply independent of the other rooms. Also, supposedly, the fire
> sprinkler heads (whatever they're called) withstand considerably more
> heat than normal ones.  So, the reasoning goes, if it gets hot enough
> for those to go off, I have bigger problems than just water.  Thus, I
> have a fire safe nearby (in the same bldg...yeah, yeah, I know; off-site
> storage!) that holds my tapes, and will shortly hold a hardware
> inventory and admin password list on all my servers.
> 
> If you want my list of vendors, send me an email off-list, or call my
> office, and I'll see if I can track down the DPOs for you.
> 
> Thanks
> 
> Jonathan Glass
> 
> On Fri, 2004-04-09 at 17:35, Dow Hurst wrote:
> 
>>If I needed to take an existing space 400 square feet w/8' ceiling, 
>>20'x20'x8', and add A/C and fire protection for a server room, what kind of 
>>cost would be incurred?  Sounds like an algebra problem from highschool 
>>doesn't it?  Let's say a full 84" rack of 4CPU Opteron nodes and supporting 
>>hardware were in the room.  Does anyone have any ballpark figures they could 
>>throw out there?  Any links I could be pointed to?
>>Thank a bunch,
>>Dow
>>
>>
>>PS.  I'd like some other type of fire protection than sprinkler heads. ;-)
> 
> 
> 

-- 
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Dow Hurst                  Office: 770-499-3428            *
Systems Support Specialist    Fax: 770-423-6744            *
1000 Chastain Rd. Bldg. 12                                 *
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Kennesaw State University         Dow.Hurst at mindspring.com *
Kennesaw, GA 30144                                         *
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