An administrator is migrating a virtual machine in a DRS cluster. The migration fails the validation check because of a CPU incompatibility issue.
Which two steps can be taken to resolve this issue? (Choose two)
Identify the CPU feature incompatibility, and then disable the feature in the BIOS of the effected ESXi hosts.
Configure EVC for RDS (DRS?) cluster.
Configure EVC for each ESXi host.
Identify the CPU feature incompatibility, and then mask the feature on all virtual machines in the cluster.
CPU Compatibility and EVC
vCenter Server performs a number of compatibility checks before allowing migration of running or suspended virtual machines to ensure that the virtual machine is compatible with the target host. vMotion transfers the running state of a virtual machine between underlying ESXi systems. Successful live migration requires that the processors of the target host be able to provide the same instructions to the virtual machine after migration that the processors of the source host provided before migration. Clock speed, cache size, and number of cores can differ between source and target processors, but the processors must come from the same vendor class (AMD or Intel) to be vMotion compatible.
Migrations of suspended virtual machines also require that the virtual machine be able to resume execution on the target host using equivalent instructions.
When you initiate a migration with vMotion or a migration of a suspended virtual machine, the Migrate Virtual Machine wizard checks the destination host for compatibility and produces an error message if there are compatibility problems that will prevent migration.
The CPU instruction set available to the operating system and applications running in a virtual machine is determined at the time that a virtual machine is powered on. This CPU "feature set" is determined based on the following items:
* Host CPU family and model
* Settings in the BIOS that might disable CPU features
* The ESX/ESXi version running on the host
* The virtual machine’s virtual hardware version
* The virtual machine’s guest operating system
To improve CPU compatibility between hosts of varying CPU feature sets, some host CPU features can be "hidden" from the virtual machine by placing the host in an Enhanced vMotion Compatibility (EVC) cluster.