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Werk #15859: cisco_fru_power: Changed behavior for PSUs without power

Component Checks & agents
Title cisco_fru_power: Changed behavior for PSUs without power
Date May 17, 2023
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed
Checkmk versions & editions
2.3.0b1 Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT
2.2.0p6 Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT
2.1.0p31 Checkmk Community, Checkmk Pro, Checkmk Ultimate MT

When a PSU monitored by the plugin "Cisco Nexus Switches: State of FRU Power Supplies" had no power, the service went to UNKNOWN. It now goes CRITICAL.

In addition we changed the conditions under which a service is discovered. Powered off FRUs in the following state have not been discovered before, but are now (quoted from the MIB):

offEnvPower(5): FRU is powered off because of power problem in the FRU. For example, the FRU's power translation (DC-DC converter) or distribution failed.

FRUs disabled administratively are no longer discovered:

offAdmin(3): Administratively off.

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