One of my replicated VMs has a thin provisioned disk which is using 30GB out of a 1TB defined size.
It has several days replicating Ok with 15-min RPO, but suddenly VR is reporting RPO violation and is copying more than 180GB out of nowhere.
I've checked the VM again... is using the 30GB and it keeps having thin provisioning, so no change has been done.
Primary site is using vCenter 6.5, VR 8.3 with iSCSI datastores.
Destination site is using vCenter 6.7, VR 8.3 with VSAN 6.7.
Have you seen a similar issue?
Is it better to open a support request than discuss it here?
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"Is it better to open a support request than discuss it here?"
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While I don't have much knowledge of vSphere Replication, I work with vSAN on a daily basis and would be interested in what Objects (e.g. vmdks etc.) are stored on the vSAN side that could amount to (at least) 180GB since you said this should only be using ~30GB, If you can PM/share the contents of the following generated file (/tmp/objout2130) and the name of the VM/namespace UUID of the replicated data:
# esxcli vsan debug object list > /tmp/objout2129
(note, requires --all flag as of 6.7 U3 or will only show the output of the first 100 Objects)