<br><br><div><span class="gmail_quote">On 7/27/06, <b class="gmail_sendername">pogson</b> <<a href="mailto:robert.pogson@gmail.com">robert.pogson@gmail.com</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
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<tt><font color="#000000">Michael Blinn <<a href="mailto:mblinn@peopleplaces.org" title="mailto:mblinn@peopleplaces.org" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">mblinn@peopleplaces.org</a>
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<tt><font color="#000000"> I'm nearing the purchase point of my terminal server, but I thought </font></tt><br>
<tt><font color="#000000">before laying down the serious $$, I should get the opinions of those </font></tt><br>
<tt><font color="#000000">who have been there before!</font></tt><br>
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I have just been through that. I was looking at building two dual - dual core Opteron 165 systems for about $7000 including 16 gB RAM. I decided that I could get more bang for the buck by using different configurations for the terminal servers and the web/dhcp/mysql/nfs server. What I came up with was:
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<li>four AMD64 X2 3800 systems for terminal servers with four 40 gB drives in RAID1 and 4 gB RAM each</li></ul></div></div></blockquote><div><br>What motherboard did you go with? <br>Also wondering what performance 4 drives (assuming 7200rpm SATA) in a RAID 1 produce? Anyone have experience with this compared to a 15k rpm scsi drive? IMO Write speed should be the same as one drive but will read speed really scale 4x?
<br> </div><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div><div><ul><li>two AMD64 X2 3800 systems for web/dhcp/mysql/nfs on /home and /var with four 320gB drives and 2gB RAM each in a fail-over cluster
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which costs about the same, except I get 16 heads on / for the terminal server and I get two extra chips working as separate servers. I get more horsepower overall except I have smaller caches. I should be able to run with one terminal server and one web server down, not that I expect that ever. I expect my LAMP stack to get a lot of work from about one third of my clients, so I thought this was better, separating terminal service from web/nfs/db. I believe I made the right decision even though the parts are still in transit, especially when the AMD cuts came in... The cut to AMD64 X2 3800 was close to 50%, and he threw in free freight... I will have 150 PXE thin clients usually with 50 old Windows machines useing web service, until they find out how much fun 3800 is compared to 400
<img src="cid:1154030183.27347.69.camel@beast" alt=";-)" align="middle" border="0"> when I expect to have 200 PXE clients. 30 clients were happy on my AMD64 3000 single core with 2gB, so I figure 50 will be happy with 3800 X2 with 4gB, especially when the PHP scripts aren't loading things down. I have Wikipedia, Moodle, phpBB, etc., available. With all the redundant storage and multiple heads, I doubt this system will get bogged down.
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<pre>-- <br>A problem is an opportunity.<br></pre>
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