HCX RAV migrations queued with "Mobility Agent is busy" due to slow cold migration in place

Products

• VMware HCX

Issue/Introduction

• RAV migrations remain in a "Parked" or "Queued" state after base sync completes.
• The HCX UI displays "Mobility Agent is busy" because an existing slow cold migration task on-going and failed to release appliance resources.

Environment

VMware HCX 

Cause

Cold Migration utilizes the native vCenter NFC protocol, which lacks deduplication and compression.

Slow cold migration preventing the release of the Mobility Agent lock required for other switchover operations.

Resolution

• Identify the stuck cold migration group in the HCX Migration dashboard.
• Cancel the cold migration task to clear the resource lock.