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</o:shapelayout></xml><![endif]--></head><body lang=EN-GB link=blue vlink=purple style='word-wrap: break-word;-webkit-nbsp-mode: space;-webkit-line-break: after-white-space'><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Sounds like plenty to me.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal style='margin-left:36.0pt'><b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> xerte-bounces@lists.nottingham.ac.uk [mailto:xerte-bounces@lists.nottingham.ac.uk] <b>On Behalf Of </b>David Goodwin<br><b>Sent:</b> 22 March 2012 17:37<br><b>To:</b> Xerte discussion list<br><b>Subject:</b> [Xerte] Re: Xertes online tool kit server specs<o:p></o:p></span></p></div></div><p class=MsoNormal style='margin-left:36.0pt'><o:p> </o:p></p><p class=MsoNormal style='margin-left:36.0pt'><o:p> </o:p></p><div><div><p class=MsoNormal style='margin-left:36.0pt'>On 22 Mar 2012, at 17:17, Hortopp, Tim wrote:<o:p></o:p></p></div><p class=MsoNormal style='margin-left:36.0pt'><br><br><o:p></o:p></p><div><div><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>Hi all<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>I’m new to the list and having scrolled through the archives have been unable to find an answer to this question, so I would be grateful if someone could please help.<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>We are looking to install the Xertes online toolkit, but don’t seem to be able to find a definitive server specification.<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>I should imagine that a 40GB disc with a dual core processor, 2GB RAM would suffice for a single LAMP instance, but can anyone confirm this please?<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>Is physical server better than virtual server? We believe we will have between 50 – 100 concurrent users so guidance would be appreciated.<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p></div></div><div><p class=MsoNormal style='margin-left:36.0pt'><o:p> </o:p></p></div><p class=MsoNormal style='margin-left:36.0pt'>Hi Tim,<o:p></o:p></p></div><div><p class=MsoNormal style='margin-left:36.0pt'><o:p> </o:p></p></div><div><p class=MsoNormal style='margin-left:36.0pt'>It's just a LAMP application.<o:p></o:p></p></div><div><p class=MsoNormal style='margin-left:36.0pt'><o:p> </o:p></p></div><div><p class=MsoNormal style='margin-left:36.0pt'>If you stick with the default configuration for MySQL, then it'll probably take up to around 100mb of memory, leaving plenty for Apache/PHP.<o:p></o:p></p></div><div><p class=MsoNormal style='margin-left:36.0pt'><o:p> </o:p></p></div><div><p class=MsoNormal style='margin-left:36.0pt'>Xerte isn't very memory heavy - except for if you're creating a zip of an LO, so I doubt your Apache processes would grow beyond 64mb each.<o:p></o:p></p></div><div><p class=MsoNormal style='margin-left:36.0pt'><o:p> </o:p></p></div><div><p class=MsoNormal style='margin-left:36.0pt'><o:p> </o:p></p></div><div><p class=MsoNormal style='margin-left:36.0pt'>So - the spec you have there should be fine. I think when you say '50-100' concurrent users you're saying you'll have 50-100 active users - but the number actually using your xerte instance within the same minute should be quite small…. (if it's not, then you'll probably need to think about more than one server, or at least a server with more cpu cores and memory)<o:p></o:p></p></div><div><p class=MsoNormal style='margin-left:36.0pt'><o:p> </o:p></p></div><div><p class=MsoNormal style='margin-left:36.0pt'>thanks,<o:p></o:p></p></div><div><p class=MsoNormal style='margin-left:36.0pt'><o:p> </o:p></p></div><div><p class=MsoNormal style='margin-left:36.0pt'>David.<o:p></o:p></p></div><div><p class=MsoNormal style='margin-left:36.0pt'><o:p> </o:p></p></div><div><p class=MsoNormal style='margin-left:36.0pt'><o:p> </o:p></p></div><div><div><div><div><div><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:13.5pt;font-family:"Helvetica","sans-serif";color:black'>Pale Purple Ltd. 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