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 Community, Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT 2.5.0b1 Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT 2.4.0p24 Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT 2.3.0p47 Not yet released Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT

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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