Geo replicated VM disks corrupted

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I have a Gluster volume on which I store virtual machines disks. I've created a geo replication session for disaster recovery and as suggested in many documentations and blogs on Internet:
- I create a snapshot of all disks before starting the replication , to make sure that the base image is consistent.
- I set a checkpoint.
- I start the geo replication.
- When the checkpoint is reached, the geo replication stops and the snapshots are deleted on the primary volume.

However, most of time (not always), when I try to use the replicated base images, they are unusable (XFS partitions on virtual disks are generally corrupted). I wanted to know if I am doing something wrong and if someone ever managed to use the geo replication feature successfuly for disaster recovery of virtual machines.


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