[no subject]

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

-- 
__________________________________________________________
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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</pre>
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<li><strong><a name="00740" href="msg00740.html">[ale] Linux Cluster Server Room</a></strong>
<ul><li><em>From:</em> jonathan.glass at ibb.gatech.edu (Jonathan Glass)</li></ul></li>
<li><strong><a name="00743" href="msg00743.html">[ale] Linux Cluster Server Room</a></strong>
<ul><li><em>From:</em> laytonjb at charter.net (Jeffrey B. Layton)</li></ul></li>
<li><strong><a name="00788" href="msg00788.html">[ale] Linux Cluster Server Room</a></strong>
<ul><li><em>From:</em> dhurst at kennesaw.edu (Dow Hurst)</li></ul></li>
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