Werk #22210: Fix check parameter errors for ASM disk groups and other rulesets

Component

Setup

Title

Fix check parameter errors for ASM disk groups and other rulesets

Date

Oct 15, 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
2.5.0p18 Not yet released	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT

Some check parameter rulesets, for example ASM Disk Group (used space and growth), IBM SVC pool capacity, AntiVirus last update age, Timemachine backup age and many of the AWS rulesets, broke Setup pages that show their parameters:

On Services of host with Display > Show check parameters enabled, their services showed "Invalid check parameter", although the parameters were valid.
The Effective parameters page of enforced services using one of these rulesets crashed with an internal error.

Both pages now show the parameters as expected.

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