KB: A VM that Azure Site Recovery helps protect goes into a resynchronization state

KB7334333232

A virtual machine (VM) that Microsoft Azure Site Recovery (ASR) helps protect in a Hyper-V to Azure scenario may repeatedly go into a resynchronization state. You cannot manually resynchronize, and you may receive the following error message for the replication health of the VM:

Replication State: Resynchronization required
Replication Mode: Primary
Current Replica Server: Microsoft Azure
Replication Health: Critical
Resynchronization is required for the machine X. Resume replication to start resynchronization.
Successful replication cycles: 0 out of Y (0%). More than 20% of replication cycles have been missed for virtual machine X.

You may also see events logged that resemble the following:

Log Name: MicrosoftAzureRecoveryServices-Replication
Source: MicrosoftAzureRecoveryServices
Event ID: 67
Task Category: None
Level: Error
Keywords:
User: SYSTEM
Description:
Resynchronization for virtual machine 'VMName' was marked corrupted by the service. (Virtual Machine ID 11201f14-2111-4a79-97d3-c312d9bcab00, Data Source ID <Number>, Task ID cbb6cfa2-cbbc-4f54-9c21-3fecbb84fe44)

and

Log Name: MicrosoftAzureRecoveryServices-Replication
Source: MicrosoftAzureRecoveryServices
Event ID: 32
Task Category: None
Level: Error
Keywords:
User: SYSTEM
Description:
Resynchronization failed for virtual hard disk 'V:\VMName\Virtual Hard Disks\VMName.vhd', of virtual machine VMName'. (Virtual Machine ID 11201f14-2111-4a79-97d3-c312d9bcab00, Data Source ID <Number>, Task ID cbb6cfa2-cbbc-4f54-9c21-3fecbb84fe44)

For complete details as well as a resolution, please see the following:

KB3094171A VM that Azure Site Recovery helps protect goes into a resynchronization state (https://support.microsoft.com/en-us/kb/3094171)

J.C. Hornbeck | Solution Asset PM | Microsoft GBS Management and Security Division

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