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Existing Hyper-V backup and replication jobs processing VM with SCSI disks start to consume x2 space on target storage after upgrade to v8


After upgrading to v8 the following issues are observed with the existing jobs processing Hyper-V VMs with SCSI disks:
  1. First backup job run will transfer entire VM disks into the incremental backup storage. The following job runs will operate normally - regular incremental restore points will be created.
  2. First replication job run will create and attach the new, duplicate SCSI disk. After that, entire VM disk contents will be replicated to the newly attached disk. As a result, replica VM will start consuming 2x space on the target storage.


This is a known issue on v8


Install the following Critical update rollup for Veeam Backup and Replication to address this issue.

More information

Veeam Backup & Replication
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