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Automating Hybrid Cloud Extension (HCX) Manager initial configuration for VMC

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Following up from my previous Hybrid Cloud Extension (HCX) Automation article which looked at deploying the HCX Manager OVA, this article will now focus on automating the initial configuration of HCX Manager including the registration to HCX Cloud which will enable the on-prem HCX Manager to be used with VMware Cloud on AWS (VMC). Once HCX Manager is up and running, customers can configure the system using the HCX VAMI interface which is available on port 9443 via the UI or in our case with the HCX VAMI APIs. 


I have updated my HCX PowerShell Module to include 8 additional functions that can be used for initial configuration of HCX Manager:

  • Set-HcxVCConfig
  • Set-HcxLicense
  • Get-HcxNSXConfig
  • Set-HcxNSXConfig
  • Get-HcxLocation
  • Set-HcxLocation
  • Get-HcxRoleMapping
  • Set-HcxRoleMapping
  • Get-HcxProxy
  • Set-HcxProxy
  • Remove-HcxProxy

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Quick Tip - How to clear all Hybrid Cloud Extension (HCX) Migrations in the vSphere UI

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During the development of my Cloud Motion with vSphere Replication automation script for Hybrid Cloud Extension (HCX), I extensively used the HCX vSphere UI for testing and debugging purposes.


Under the Migration view, you can see all active and completed migrations, including any failed migration attempts. In my particular environment, there had been a few hundred migrations and with my additional testing, that added quite a few more. Although you can filter by name or sort by the type of operation, it was still not very convenient for me while developing the script. I wanted a quick way to view the details after calling the HCX APIs and by the time I jumped to the UI, I would have missed a few of those updates.

In speaking with one of the HCX Engineers, I found out that you could simply drop all migration history from the internal database (this would remove all the history for past migrations including failures). In general, I do not see this being something customers would have a need for in Production, as you would want to keep all the history for auditing or debugging purposes. This is probably more for demo or testing purposes and below are the instructions on how to clear all migrations from your HCX Manager.

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Automating new Cloud Motion with vSphere Replication using Hybrid Cloud Extension (HCX) API

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Cloud Motion with vSphere Replication is the newest migration type that has been added to the Hybrid Cloud Extension (HCX) solution, which was also demonstrated during the VMworld US 2018 keynote (watch here). Unlike the traditional Bulk Migration, which also uses vSphere Replication to perform the initial replication, Cloud Motion with VR does not incur any downtime during the VM switch over. This is possible with our most beloved vSphere feature, vMotion!

With Bulk Migration, the VM on the source vCenter Server must be shutdown before the newly replicated VM on the destination vCenter Server can be powered on or else a network conflict will occur. Using Cloud Motion with VR, the VM is simply vMotion'ed from the source vCenter Server to the destination vCenter Server and because the VM's storage has already been replicated, the only thing that needs to transfer is the memory state of the VM.


All three HCX Migration Types can be scheduled from the HCX UI using the vSphere Client or automated using the HCX API. The latter option is definitely ideal for customers with large number of migrations but it can also help with smaller migrations as it reduces the amount of user input required when using the UI and ultimately, this reduces user errors.

To help demonstrate the HCX Migration APIs, I have updated my VMware HCX PowerShell Module to include the following two new functions:

  • New-HcxMigration
  • Get-HcxMigration

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