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<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns="http://www.w3.org/TR/REC-html40"> <head> <meta name=Title content="Hardware specification for LON-CAPA servers"> <meta name=Keywords content=""> <meta http-equiv=Content-Type content="text/html; charset=macintosh"> <meta name=ProgId content=Word.Document> <meta name=Generator content="Microsoft Word 10"> <meta name=Originator content="Microsoft Word 10"> <link rel=File-List href="Hardware%20specification%20fo_files/filelist.xml"> <title>Hardware specification for LON-CAPA servers</title>  <style>  </style> </head> <body bgcolor=white lang=EN-US style='tab-interval:.5in'> <div class=Section1> <h1>Hardware specification for LON-CAPA servers</h1> <p><i>Scott Harrison, freeware volunteer, sharrison@sourceforge.net</i><span style='font-style:normal'> </span></p> <h2><a name="_Toc421867153">General information on LON-CAPA Server Hardware Requirements</a></h2> <p>For full-time, classroom usage, an adequate LON-CAPA server should be/have: </p> <ul type=disc> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l0 level1 lfo1;tab-stops:list .5in'>a multiprocessor machine,</li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l0 level1 lfo1;tab-stops:list .5in'>a CPU speed of 1 gigahertz,</li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l0 level1 lfo1;tab-stops:list .5in'>a gigabyte of memory,</li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l0 level1 lfo1;tab-stops:list .5in'>and at least 40 to 80 gigabytes of hard disk space.</li> </ul> <p>A lesser machine can be used for toying around with LON-CAPA (LON-CAPA will run for a single user on most any machine). </p> <p>LON-CAPA servers experience significant peaks of activity before a homework submission deadline. To support these critical peaks of activity, it is strongly advised that LON-CAPA machines fit the above recommendation. </p> <p>If thousands of students start accessing the box as a web server... well you may want to consider more options. The design of the LON-CAPA system is to naturally and transparently load-balance on multiple computer clusters. So, a simple solution for running an entire college campus is to just have an adequate plurality of LON-CAPA servers rather than a single, particularly monstrous server. </p> <p>We like to think of high web server usage as "a good problem" though.... </p> <h2><a name="_Toc421867154">Additional Information on LON-CAPA Server Hardware Requirements</a></h2> <p>LON-CAPA works nicely (for development purposes) on a Pentium II, 20 gigabytes of hard-disk space, 256M RAM, and 400MHz. The consensus is though, that this may only be adequate for a class of a dozen students. </p> <p>If you are making a serious investment, you should join the LON-CAPA mailing list by visiting http://mail.lon-capa.org/mailman/listinfo/lon-capa-users. By posting to this mailing list, you can learn about the solutions have worked for others. </p> <p>LON-CAPA works on any Intel-based RedHat-compatible hardware. Unlike other e-learning software systems, it works comparatively well on dusty old crippled machines without much RAM or processing. </p> <p><![if !supportEmptyParas]> <![endif]><o:p></o:p></p> </div> <span style='font-size:12.0pt;font-family:Times;mso-ansi-language:EN-US'><br clear=ALL style='page-break-before:always;mso-break-type:section-break'> </span> <div class=Section2> <p class=MsoNormal><![if !supportEmptyParas]> <![endif]><o:p></o:p></p> </div> </body> </html>

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