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Chris Coleman wrote:
> What type of UPS system are you using? Do most install a large UPS system for the entire server room? If so, how much will this cost?
>
> Thanks,
> Chris
>
> -----Original Message-----
> From: Dow Hurst [<a rel="nofollow" href="mailto:dhurst";>mailto:dhurst</a> at kennesaw.edu]
> Sent: Monday, April 12, 2004 11:20 AM
> To: ale
> Subject: Re: [ale] Linux Cluster Server Room
>
>
> 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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Systems Support Specialist Fax: 770-423-6744 *
1000 Chastain Rd. Bldg. 12 *
Chemistry Department SC428 Email: dhurst at kennesaw.edu *
Kennesaw State University Dow.Hurst at mindspring.com *
Kennesaw, GA 30144 *
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