When upgrading a VMware vSAN cluster to version 6.5, which two tasks must be completed to comply with upgrade requirements and VMware-recommended best practices? (Choose two.)
When upgrading a VMware vSAN cluster to version 6.5, which two tasks must be completed to comply with upgrade requirements and VMware-recommended best practices? (Choose two.)
A . Use RVC to upgrade the hosts.
B . Use the latest available ESXi version.
C . Back up all VMs.
D . Use only the “Full data migration” maintenance mode option.
Answer: B,C
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The correct answers are A & B. Reference: https://docs.vmware.com/en/VMware-vSphere/6.7/com.vmware.vsphere.virtualsan.doc/GUID-ABABC0DF-2519-4C8F-A5B1-2AECF86247AB.html