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CPU load average on systems using UCD SNMP Daemon

Distribution: official part of Check_MK
License: GPL
Supported Agents: SNMP

This check measures the CPU load average via SNMP on systems running the UCD SNMP daemon. This daemon is mostly found on Linux systems and used by some hardware appliances (such as Riverbed Steelhead).

The daemon sends a 1, 5 and 15 minute average of the CPU load. The 15 minute value is checked against a warning and a critical level. Since the SNMP MIB does not contain information about the number of CPUs this check assumes only one CPU to be present. Thatfore the warn/crit levels are interpreted as absolute values - not as values per cpu (like the in agent based load check).

Discovery

One service will be created for each check supporting the UCD MIB. Currently the SNMP scan function will only consider hosts with the text linux in their system description. You can try an explicit inventory with cmk --checks ucd_cpu_load -I HOSTNAME if that is not the case.