Error: "Failed to enable cold migration feature" When trying to enable cold migration feature

Products

• VMware Live Recovery
• VMware Cloud Director

Issue/Introduction

• When trying to enable the cold migration feature in VMware Cloud Director Availability (VCDA) you get an error:
  
  Failed to enable cold migration feature
  
  
• In /opt/vmware/h4/replicator/log/replicator.log on the replicator appliance you can see entries similar to:
  
  ERROR - [UI-########-####-####-####-############-####-##-##-##] [job-99] com.vmware.h4.jobengine.JobExecution     : Task ########-####-####-####-############ (WorkflowInfo{type='configure', resourceType='h4dm', resourceId='null', isPrivate=false, resourceName='null'}) has failed
com.vmware.h4.replicator.api.exceptions.FailedToAcquireVcConnection: Unable to connect to vCenter '########-####-####-####-############'.
    at com.vmware.h4.replicator.vc.VcConnector.acquire(VcConnector.java:355)
    at com.vmware.h4.replicator.vc.VcConnector.acquireLatest(VcConnector.java:329)
    at com.vmware.h4.replicator.h4dm.DataMoverService.addVim(DataMoverService.java:91)
    at com.vmware.h4.replicator.h4dm.job.ConfigureH4dmJob.lambda$enableVcentersImpl$5

Environment

VMware Cloud Director Availability 4.7

Cause

This issue occurs when the VCDA Manager does not have access to all the vCenters that back the accessible PVDCs.

Resolution

To fix this issue you need to make sure that the vCenters that back the PVDCs accessible to VCDA can connect with the VCDA Manager. For this you can either ensure connectivity between all the vCenters that back the accessible PVDCs and the VCDA manager appliance or limit the accessible PVDCs in the VCDA settings.

Note: After disabling the accessible PVDCs the change can take up to 30 minutes to synchronize the accessible vCenters.

Additional Information

For more information on enabling Cold Migrations in VCDA, see Activate the cold Migrations