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Monitoring the Big Picture: Page 2 of 6

Monitors

ProactiveNet monitors require only about 31 KB of memory. And depending on what's being monitored and how frequently, our tests showed the agents consume only 1 percent to 2 percent of CPU resources.

The monitors collect data from systems, network devices, databases and applications, as well as Web, mail and security servers. Additionally, each category above has a range of monitors. In the systems group Host MIB, for example, information is supported as a source from which to gather data, but special collectors ship with the product--including those for Dell, Compaq, Windows NT/2000, BMC Patrol and Computer Associates' Unicenter--and these monitors require only configuration to work.

Complete SNMP data collection has been a part of ProactiveNet since version 1, and agents or monitors can now be distributed and used to collect non-SNMP performance data. Keynote and Mercury transactions have been added to the existing Web transactions.

ProactiveNet differs from most performance-monitoring applications in that it automatically sets performance thresholds based on historical trending. With other monitors, thresholds are set statically, requiring a deep understanding of what's considered normal for a given network, system or application; thus, it's not uncommon for the resulting alarms to be ignored once the thresholds are set.