Werk #19136: Aruba PSU: Don't calculate load percentage for powered off PSU

Component

Checks & agents

Title

Aruba PSU: Don't calculate load percentage for powered off PSU

Date

Mar 5, 2026

Level

Trivial Change

Class

Bug Fix

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

2.6.0b1 Not yet released	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.5.0b1 Not yet released	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.4.0p24 Not yet released	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)

The PSU check previously crashed when calculating the load percentage if the device reported a max wattage of 0, resulting in a division by zero error. This issue occurred when powering off an already discovered PSU, potentially disrupting monitoring.

With this fix, the check now verifies whether the device reports a max wattage higher than 0 before attempting the load percentage calculation. If the max wattage is 0 or less, the calculation is safely skipped, preventing crashes and improving overall stability.

No user action is required.

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