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Werk #22641: synology_raid: Don't crash on volumes that are no longer reported

Component Checks & agents
Title synology_raid: Don't crash on volumes that are no longer reported
Date Oct 14, 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
2.5.0p16
Not yet released
Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT
2.4.0p38
Not yet released
Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT

If a Synology NAS stopped reporting a volume or storage pool that had been discovered before (for example after the volume was deleted), its Raid <name> service crashed with KeyError.

The service now reports that the item is no longer found, and the discovery check lists it as vanished, so it can be removed by re-running the service discovery.

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