What are two reasons why a datastore in a Storage DRS cluster cannot enter maintenance mode? (Choose two.)
A. Storage latency is too high to allow Storage DRS initiate Storage vMotion.
B. Storage DRS is configured for a VMFS3 datastore.
C. Storage DRS is disabled on the virtual disk.
D. Rules prevent Storage DRS from making migration recommendations.
C,D
C,D
here the link for 6.5
https://docs.vmware.com/en/VMware-vSphere/6.5/com.vmware.vsphere.troubleshooting.doc/GUID-D99F9ADA-5067-4C3B-9A36-5364388B98A9.html