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<?xml version="1.0" encoding="iso-8859-1"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en"> <head> <link rel="stylesheet" href="style.css" type="text/css" /> <meta http-equiv="refresh" content="300" /> <title>Munin :: definitions</title> <meta http-equiv="content-type" content="application/xhtml+xml; charset=iso-8859-1" /> <meta name="author" content="Jimmy Olsen" /> </head> <body> <table cellpadding="3" border="0"> <tr> <td><div class="logo"> </div></td> <td valign="top"><h1>Definition of terms used in Munin</h1></td> </tr> </table> <div class="box"> <table cellpadding="2" cellspacing="4" border="0"> <tr> <td valign="top" align="left"><a id="data_types">Data types:</a></td> </tr> <tr> <td colspan="2"><hr class="ruler" /></td> </tr> <tr> <td valign="top" align="left">– <a id="gauge">Gauge</a></td> <td valign="top" align="left">A data source of type gauge shows the state of the data source at the exact moment that Munin is run (every 5 minutes). Any peaks in-between data gatherings, will not be in the graph.</td> </tr> <tr> <td valign="top" align="left">– <a id="counter">Counter</a></td> <td valign="top" align="left">A data source of type counter shows the state of the data source as an average between two plots (i.e. 5 minutes). Short peaks will therefore be hard to spot, but long peaks will be spottable, even though it occurs between plots.</td> </tr> <tr> <td valign="top" align="left">– <a id="derive">Derive</a></td> <td valign="top" align="left">For the purposes of viewing data, the derive type works the same way as a counter</td> </tr> <tr> <td valign="top" align="left">– <a id="absolute">Absolute</a></td> <td valign="top" align="left">Absolute works much as a counter, with the exception that it is assumed that the counter value is set to 0 upon each read of it. It's not a good idea to run these plugins by hand in-between Munin runs, since Munin won't receive all the data it expects.</td> </tr> <tr> <td colspan="2"><hr class="ruler2" /></td> </tr> <tr> <td valign="top" align="left"></td> </tr> </table> </div> <table cellpadding="2" cellspacing="4" border="0"> <tr> <td><i class="small"><a href="http://munin-monitoring.org">Munin</a></i></td> </tr> </table> </body> </html>