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Knowledge Base

HCX Bulk Migration not progressing beyond 0% (79020)

Last Updated: 3/28/2024Categories: TroubleshootingTotal Views: 9069Language:
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Symptoms

HCX Bulk Migrations not progressing beyond 0%. There is no indication of any errors in the HCX UI and the migration workflows remain actionable to be halted.

Purpose

This article provides information to help identify some of the issues that can cause HCX VR Bulk Migrations to not proceed beyond initial stages and show 0% progress indefinitely.

Cause

Required communication flows between HCX and the local infrastructure vCenter/ESXi/NSX are unavailable for the migration workflow to proceed. HCX will continuously attempt to establish communication without failing.

ESXi firewall blocking ports which is required by HCX Bulk Migrations.

DFW blocking ports which is required by HCX Bulk Migrations

Local Management Traffic sent to external DFGW and being dropped due to MTU restrictions

vSphere Replication not enabled on the expected VMkernel adapter

vSphere Replication NFC communication is only done through the Management Network for the IX appliance, even if there is a separate Network Profile configured for VR.

VMkernel adapter enabled for vSphere Replication becoming unresponsive

For other known issues that may cause a similar problem refer to the following KBs

KB 50442

KB 80427

KB 81292

Impact / Risks

Unavailable communication flows will disrupt VR Bulk Migration workflows.

Resolution

HCX Bulk Migration requires TCP 31031 and 44046 communication between the IX appliance and the VMkernel adapter configured for vSphere Replication on all the ESXi Host in the Service Cluster at Source and Target.

The IX Management interface must have a path to any of the VMkernel adapters configured for vSphere Replication NFC (TCP 902). If the VMkernel adapter IP cannot be reached through the Default Gateway configured for the Management Network Profile, then a static route must be configured on the Compute Profile.
If no VMkernel adapter is enabled for VR NFC, the ESXi host will default to the Management interface but based on the local networking environment, it may be required to enabled NFC on the ESXi host Management Interface.

Verify firewall settings on all ESXi host in the Service Cluster and DFW configuration on NSX to allow all the required communication ports. Refer to VMware Ports and Protocols https://ports.vmware.com/home/VMware-HCX

Run Service Mesh to identify disrupted communication flows.

Install Checklist B - HCX with a VMC SDDC Destination Environment
https://docs.vmware.com/en/VMware-HCX/services/install-checklist/GUID-70F9C40C-804C-4FC8-9FBD-77F9B2FA77CA.html

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End Of General Availability of the Free vSphere Hypervisor (ESXi 7.x and 8.x) (2107518)

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