VMFS Filter
config.vpxd.filter.vmfsFilter. This filters out devices or LUNs that already contain a VMFS and does not allow them to be presented as a candidate to be used for a new datastore or an extent.
RDM Filter
config.vpxd.filter.rdmFilter. This filters out LUNs that are already referenced by an RDM so that they cannot be used as an RDM for another VM.
Same Host and Transport Filter
config.vpxd.filter.SameHostAndTransportsFilter. This filters out LUNs that are ineligible for use because of host or storage type incompatibility.
Host Rescan Filter
config.vpxd.filter.hostRescanFilter. This automatically rescans and updates datastores after you perform datastore management operations.