Backup Success with Exclusions: Passthrough Disks Excluded for GuestMachine
KB ID: 104025
Summary:
This knowledge base article highlights the successful completion of a backup operation for a virtual machine named GuestMachine. The backup procedure specifically excluded passthrough disks associated with the VM. This article provides insights into the cause, solution, and additional information regarding this scenario.
Cause:
The displayed message is typical when a virtual machine intended for backup via the Hyper-V host possesses a passthrough disk configuration.
Solution:
To address this situation, it's necessary to take the following steps:
1. Exclude the passthrough disk from the virtual machine.
2. Initiate the backup process once the passthrough disk has been excluded.
More Information:
- The presence of passthrough disks in a virtual machine configuration is not compatible with the backup process. If a virtual machine has both a normal disk and a passthrough disk, the passthrough disk will be omitted from the backup while the normal disk will be included.
- As of now, BDRSuite does not support the backup of passthrough disks. This limitation is due to BDRSuite utilizing the Hyper-V VSS writer for VM backup operations, a feature that is not supported for passthrough disks (as per Microsoft's constraints).