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2V0-622D · Question #131

Which feature is available for virtual machine configured with DirectPath I/O?

The correct answer is D. Clone. DirectPath I/O (PCI passthrough) disables vMotion and most vSphere mobility features, but cold cloning of a VM with DirectPath I/O configured is still possible because it does not require live migration.

Section 8 – Deploy and Administer VMware Virtual Machines

Question

Which feature is available for virtual machine configured with DirectPath I/O?

Options

  • ADRS
  • BSnapshots
  • CFault Tolerance
  • DClone

How the community answered

(44 responses)
  • B
    5% (2)
  • C
    2% (1)
  • D
    93% (41)

Why each option

DirectPath I/O (PCI passthrough) disables vMotion and most vSphere mobility features, but cold cloning of a VM with DirectPath I/O configured is still possible because it does not require live migration.

ADRS

DRS requires vMotion to rebalance workloads across hosts, and DirectPath I/O disables vMotion because a passed-through PCI device cannot be migrated live, making DRS automation unavailable.

BSnapshots

Snapshots are not supported for VMs with DirectPath I/O because capturing a consistent memory and device state for a physically attached PCI device is not possible by the hypervisor.

CFault Tolerance

Fault Tolerance is not supported with DirectPath I/O because FT relies on vMotion and continuous memory replication between hosts, both of which are incompatible with PCI passthrough.

DCloneCorrect

Cloning a VM with DirectPath I/O is supported as a cold operation - the clone inherits the passthrough device configuration. Because cloning does not require the VM to be live-migrated or its memory state suspended to another host, the vMotion dependency that blocks other features does not apply.

Concept tested: DirectPath I/O feature compatibility and limitations

Source: https://docs.vmware.com/en/VMware-vSphere/8.0/vsphere-networking/GUID-E8BC4A79-DE35-48EE-9CF1-1D0B7EADC67E.html

Topics

#DirectPath I/O#VM passthrough#feature limitations#cloning

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