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1: <html xmlns:o="urn:schemas-microsoft-com:office:office" 2: xmlns:w="urn:schemas-microsoft-com:office:word" 3: xmlns="http://www.w3.org/TR/REC-html40"> 4: 5: <head> 6: <meta name=Title content="Hardware specification for LON-CAPA servers"> 7: <meta name=Keywords content=""> 8: <meta http-equiv=Content-Type content="text/html; charset=macintosh"> 9: <meta name=ProgId content=Word.Document> 10: <meta name=Generator content="Microsoft Word 10"> 11: <meta name=Originator content="Microsoft Word 10"> 12: <link rel=File-List href="Hardware%20specification%20fo_files/filelist.xml"> 13: <title>Hardware specification for LON-CAPA servers</title> 14:  43: <style> 44:  148: </style> 149: </head> 150: 151: <body bgcolor=white lang=EN-US style='tab-interval:.5in'> 152: 153: <div class=Section1> 154: 155: <h1>Hardware specification for LON-CAPA servers</h1> 156: 157: <p><i>Scott Harrison, freeware volunteer, sharrison@sourceforge.net</i><span 158: style='font-style:normal'> </span></p> 159: 160: <h2><a name="_Toc421867153">General information on LON-CAPA Server Hardware 161: Requirements</a></h2> 162: 163: <p>For full-time, classroom usage, an adequate LON-CAPA server should be/have: </p> 164: 165: <ul type=disc> 166: <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; 167: mso-list:l0 level1 lfo1;tab-stops:list .5in'>a multiprocessor machine,</li> 168: <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; 169: mso-list:l0 level1 lfo1;tab-stops:list .5in'>a CPU speed of 1 gigahertz,</li> 170: <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; 171: mso-list:l0 level1 lfo1;tab-stops:list .5in'>a gigabyte of memory,</li> 172: <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; 173: mso-list:l0 level1 lfo1;tab-stops:list .5in'>and at least 40 to 80 174: gigabytes of hard disk space.</li> 175: </ul> 176: 177: <p>A lesser machine can be used for toying around with LON-CAPA (LON-CAPA will 178: run for a single user on most any machine). </p> 179: 180: <p>LON-CAPA servers experience significant peaks of activity before a homework 181: submission deadline. To support these critical peaks of activity, it is 182: strongly advised that LON-CAPA machines fit the above recommendation. </p> 183: 184: <p>If thousands of students start accessing the box as a web server... well you 185: may want to consider more options. The design of the LON-CAPA system is to 186: naturally and transparently load-balance on multiple computer clusters. So, a 187: simple solution for running an entire college campus is to just have an adequate 188: plurality of LON-CAPA servers rather than a single, particularly monstrous 189: server. </p> 190: 191: <p>We like to think of high web server usage as "a good problem" 192: though.... </p> 193: 194: <h2><a name="_Toc421867154">Additional Information on LON-CAPA Server Hardware 195: Requirements</a></h2> 196: 197: <p>LON-CAPA works nicely (for development purposes) on a Pentium II, 20 198: gigabytes of hard-disk space, 256M RAM, and 400MHz. The consensus is though, 199: that this may only be adequate for a class of a dozen students. </p> 200: 201: <p>If you are making a serious investment, you should join the LON-CAPA mailing 202: list by visiting http://mail.lon-capa.org/mailman/listinfo/lon-capa-users. By 203: posting to this mailing list, you can learn about the solutions have worked for 204: others. </p> 205: 206: <p>LON-CAPA works on any Intel-based RedHat-compatible hardware. Unlike other 207: e-learning software systems, it works comparatively well on dusty old crippled 208: machines without much RAM or processing. </p> 209: 210: <p><![if !supportEmptyParas]> <![endif]><o:p></o:p></p> 211: 212: </div> 213: 214: <span style='font-size:12.0pt;font-family:Times;mso-ansi-language:EN-US'><br 215: clear=ALL style='page-break-before:always;mso-break-type:section-break'> 216: </span> 217: 218: <div class=Section2> 219: 220: <p class=MsoNormal><![if !supportEmptyParas]> <![endif]><o:p></o:p></p> 221: 222: </div> 223: 224: </body> 225: 226: </html>