62197: Acronis Backup 12.5 and 11.7: recommendations for backing up Hyper-V Replica VMs

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This article applies to:

  • Acronis Backup 12.5 Update 4
  • Acronis Backup 11.7 build 50460

Scenario

You have a Microsoft Hyper-V environment and want to back up replica VMs.

Recommendations

1. Do not back up a replica if it is being updated: is in Pending Initial Replication, Resynchronizing, or Resynchronization required status. See details here.

2. Do not turn on Hyper-V replication during backup. Wait for backup completion.

3. Do not recover replica VM into existing replica VM while Hyper-V replication is enabled. This would make Hyper-V replica inconsistent, since it would assume the previous replica VM state when replicating changes made to original VM, while the replica VM state will be out of sync after recovery from backup. See details in here.

If Hyper-V replication has been disabled for a VM, for Acronis software this replica will become identical to the original VM, thus this machine will be duplicated in Acronis backup management console and there will be no way to tell which one is backed up. In other words do not use Hyper-V replication as a tool for VMs cloning.

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