OPERATIONAL DEFECT DATABASE
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After a VM's disks have been resized to be smaller, the Replication job within Veeam Backup & Replication fails with the following error:
This error occurs when Veeam Backup & Replication detects that the VM being replicated has had one of its disk sizes reduced, or a disk was swapped for a smaller one. The job fails because Veeam is unable to make the corresponding disk on the replica smaller to match.
You should only perform the steps documented in this solution section if you are sure that the VM being replicated has had its disk size changed. If you are unsure, contact Veeam Support to assist you in reviewing the situation to ensure there is not a deeper environmental issue, such as reference ID mismatch.
If the source VM's disks were not altered, and this error is unexpected, this error may also be caused by: The Source VM has been mapped to the wrong replica. The disks of the source VM have had their SCSI node changed. The unique reference ID of the source VM or replica has changed, causing Veeam to interact with the wrong VM.
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