DAG backup, disaster recovery

Hi

I´m about to protect our DAG with Microsoft Azure backup Server (slightly downscaled DPM).

In a disaster recovery event, is it enough if i only backup the DAG databases with DPM or do i need something more?
We have netapp snapshots of our 2 exchangeservers as well.

so if everything dies,restore VMs via netapp snapshots, restore DAG via DPM?
Or can i even create new server and cluster and restore DAG DB on them?