When creating “Custom SNMP Sensors” in PRTG Traffic Grapher you need to choose between a “Delta counter (difference per period)” and a “Gauge counter (absolute value)”. Sometimes you may want to change this setting later.
Our latest knowledgebase article explains how to do it.
Apparently a traffic accident is to blame for almost 3 hours of downtime for our corporate websites in the night from Monday to Tuesday. A truck driver lost control over his vehicle due to low blood sugar and drove into a power transformer on the side of the Dallas-area data center of Rackspace Inc. in Grapevine, Texas, which hosts our server park.
Today we have published a new beta version of PRTG V6.2. Our developers have recently worked on PRTG’s SNMP engine and optimized it heavily.
It can now query more SNMP values in less time and with less network load. Especially for installations with some hundred sensors or more (and for installations with small intervals, e.g. below 10 seconds) this new version requires less CPU load and causes less network traffic while showing better performance.
Download this beta (the beta expires Dec 12th 2007).