SnapshotLessVolume replaces Snapshots - searching for volumes without snapshots

In an example (that has now been removed from our help page) we described how the snapshots check could be used with the metric _number_to find volumes that don’t have any snapshots. Unfortunately, this example was misleading and lead to false negatives. For this use case we are preparing a separate check SnapshotLessVolume  that will be included in the next release 3.9.1! Any customers currently using snapshots should verify their configuration and replace any service checks using Snapshots  with --metric=number and a threshold of 0 (--warning=0 oder --critical=0) and use SnapshotLessVolume  instead.