Physical disk with identifier {0} has an existing Persistent Reservation placed on it, and will be removed from the validation ...

Physical disk with identifier {0} has an existing Persistent Reservation placed on it, and will be removed from the validation set.  This disk may already be clustered, on a different cluster or in use by another system.  Please verify the storage configuration and LUN zoning.  If you wish to cluster this disk, you can use the Clear-ClusterDiskReservation PowerShell cmdlet to remove the Persistent Reservation from the disk.