If you select the “parameters for this service” then you can create a rule
The storage pool is nothing else as a filesystem for Checkmk.
Adjust the levels to your need (i would recommend first to test the magic factor) and test the result.
not very intuitive that “datasetname$” below “mount point” is considered to be taken as a dataset - but good to know, that we can do it this way, thanks !
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