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.
Answer: CD
Explanation:
Problem
A datastore in a datastore cluster cannot either maintenance mode. The Entering Maintenance Mode status remains at 1%.
Cause
One or more disks on the datastore cannot be migrated with Storage vMotion. This condition can occur in the following instances.
Storage DRS is disabled on the disk
Storage DRS rules prevent Storage DRS from making migration recommendations for the disk.
Reference:
https://pubs.vmware.com/vsphere-51/index.jsp?topic=%2Fcom.vmware.vsphere.troubleshooting.doc%2FGUID-91D4FBBC-0677-44DA-B0F2-43A3504F8CA0.html