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DRaaS restore of Domain Controller Virtual Machine fails with AWS_DR24 error

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This article applies to:

  • OS: AWS
  • Product edition: Phoenix

Problem description

When attempting to restore a domain controller virtual machine with DRaaS to Amazon AWS, the restore fails with AWS_DR24 error.

Error message:
AWS_DR24: VM is not valid to create AMI.

Cause

This error may occur if the virtual machine being restored contains an NDTS database installed on a secondary volume instead of the system volume C:\.  During the import process, secondary volumes may not be accessible as the AWS PV storage drivers are installed for the first time. If the secondary volumes are not accessible, Active Directory services may fail to find the NTDS directory causing the operating system to crash.

Resolution

  1. Move the Active Directory database to the system volume C:\ and run the backup job again.
  2. Trigger DR restore manually and then perform a failover to AWS.