Werk #20199: Redfish: monitor rack PDUs that omit PowerEquipment from the service root

Component	Checks & agents
Title	Redfish: monitor rack PDUs that omit PowerEquipment from the service root
Date	Aug 27, 2026
Level	Trivial Change
Class	Bug Fix
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	3.0.0b1 Not yet released Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT 2.5.0p13 Not yet released Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT 2.4.0p37 Not yet released Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT

Previously, the Redfish power special agent aborted with "ERROR: probably not a Redfish power equipment - missing PowerEquipment information" on PDUs (for example, PANDUIT) that do not advertise the PowerEquipment resource in their /redfish/v1 service-root response. This produced a crash report and no PDU services were monitored.

The agent now probes the standard path /redfish/v1/PowerEquipment before giving up, and additionally accepts the non-standard PowerDistribution link that such devices use to point at their rack PDU collection.

A rack PDU collection that is empty or cannot be fetched no longer aborts the run either; the remaining data is still reported.

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