ESXi 6.5 introduces VMFS6, which supports both 512e and 512n devices.
What three configurations are supported when using these devices? (Choose three.)
A.
Hosts with both 512e and 512n devices.
B.
Storage vMotion between both 512e and 512n devices.
C.
Datastore Extents spanned between both 512e and 512n devices.
D.
Storage DRS clusters containing only both 512e and 512n devices.
A,B,D
Datastore Extents. A spanned VMFS datastore must use only homogeneous storage devices, either 512n or 512e. The spanned datastore cannot extend over devices of different formats.
“Datastore Extents. A spanned VMFS datastore must use only homogeneous storage devices, either 512n or 512e. The spanned datastore cannot extend over devices of different formats.”
“Storage DRS. VMFS5 and VMFS6 can coexist in the same datastore cluster. However, all datastores in the cluster must use homogeneous storage devices, either 512n or 512e. Do not mix devices of different formats within the same datastore cluster.”
https://docs.vmware.com/en/VMware-vSphere/6.5/com.vmware.vsphere.storage.doc/GUID-7552DAD4-1809-4687-B46E-ED9BB42CE277.html
Assuming D is a typo since it makes no sense anyway.
Datastore Extents. A spanned VMFS datastore must use only homogeneous storage devices, either 512n or 512e. The spanned datastore cannot extend over devices of different formats.
Storage DRS. VMFS5 and VMFS6 can coexist in the same datastore cluster. However, all datastores in the cluster must use homogeneous storage devices, either 512n or 512e. Do not mix devices of different formats within the same datastore cluster.