If you are not using Storage Spaces with this cluster (such as on a SAN) then this test is not applicable and you can ignore any results of the "Validate Storage Spaces Persistent Reservation" test including this warning . To avoid future warnings, you can exclude this test.
If you intend to use the disks with Storage Spaces on the cluster they not compatible and you should check your storage configuration and documentation to see if there are settings or firmware/driver versions required to support clustered storage spaces.
You may check the following article to learn the detailed information of the message:
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