Async Replication?

Hi All,
Wonder if you have any idea on how to accomplish that.

I will have a KVM running using two drives.
1. OS
2. Database 30TB with no files system

I need to replicate the database to a DR site. the sync should happen once a day ( in order to save bandwidth and I don't need a real time replication ).

I have notice that in 2.3 there is a snapshot capability with Qcow2 format, maybe there is a way to create a snapshot every day and restore it at the DR?

Unfortunately this database does not provide replication option and using a RAW disks without filesystem so Rsync is no good as well.

Will be happy for more ideas..


Thanks you all....