Gluster users - Feb 2017 - georeplication , backups and consistency

Is possible to use georep as backups?
rsyncing every night a 100TB cluster is impossible. Georep could do
the same by syncing h24 in almost realtime, to a different host.

But what about data consistency ? What if i'm running VMs stored on gluster?
In case of disaster, can I restore from georep or data would be inconsistent?