Limitations for Microsoft Hyper-V checkpoint replication
The following information applies to the VM replication function for Hyper-V checkpoints.
• DS-Client can only replicate virtual machines from a stand-alone Hyper-V Server to another stand-alone Hyper-V Server, or from a Hyper-V cluster to another Hyper-V cluster.
• DS-Client will replicate all hard disks on the source virtual machine. But network devices (e.g. network adapters) and other peripheral components (e.g. DVD drives) that are used by the source virtual machine will not be replicated.
• DS-Client can replicate only virtual machines with a virtual machine name that does not exceed 71 characters.
• Because the option Enable write caching on the disk is enabled by default in the guest operating system, recent changes in the source virtual machine can be lost in the checkpoint. To ensure that the lost changes are replicated to the target virtual machine, perform the VM replication process again. For information on this write-cache policy, follow this link:
https://support.microsoft.com/en-us/kb/324805
• Avoid scheduling or performing VSS-aware backup and Microsoft Hyper-V checkpoint replication activities at the same time on the same Hyper-V virtual machine. Doing so can adversely affect the backup or replication process.