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 Not yet released Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME) 2.3.0b1 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME) 2.2.0p6 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME) 2.1.0p31 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)

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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