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VMware HCX migration considerations

VMware HCX offers five options with the HCX Enterprise Edition license when migrating VMware vSphere virtual machines to the Azure VMware Solution:

  • Cold Migration
  • HCX vMotion
  • Bulk Migration
  • Replication Assisted vMotion
  • OS Assisted Migration

The cost of the VMware HCX Enterprise Edition license is included in the cost of the Azure VMware Solution service.

VMware HCX migration options

Each of these options has different advantages and disadvantages when used. You need to select the best options for your migration plan.

Migration Method Migration Downtime Scale
Cold Migration Long downtime VM copy with Network File Copy (NFC) protocol, small scale
HCX vMotion None Serial migrations, small scale
Bulk Migration Minimal downtime VM shutdown (source site)/VM power-on (destination site), Parallel migrations, largest scale
Replication Assisted vMotion (RAV) None Parallel migrations, larger scale
OS Assisted Migration (OSAM) Conversion downtime Hyper-V and KVM workload migrations

VMware HCX architecture

The Azure VMware Solution deploys VMware HCX as an Add-On. A VMware HCX Service Mesh is used to connect two sites together, including a Layer 2 network extension. This allows VMware vSphere virtual machines to be migrated from the on-premises site to the Azure VMware Solution private cloud.

Diagram showing the architecture of VMware HCX with the Azure VMware Solution.

Next Steps

After learning about the VMware HCX migration considerations of the Azure VMware Solution, consider exploring the following articles: