Cloud Volumes ONTAP is used for disaster recovery right now, and the primary use case for our current clients and environments is CIFS. Most clients use Cloud Volumes ONTAP as a replication destination for CIFS. It's a way to back up their documents and files offsite for disaster recovery. They have VMs that they spin up and connect to.
In most cases, we have not deployed anything that uses the service protocol, like iSCSI or NFS. It's strictly CIFS. We haven't used one solution—matching DR for CIFS volumes—which is a destination that replicates from on-prem to the cloud, but we've done DR tests with that.
The other two instances we're currently running will be the same scenario, but we're not there yet. Right now, they are being used for SnapMirror destinations of CIFS volumes only, and that's all three. We've been running Cloud Volumes ONTAP in Azure as a VM along with a connector. They had one deployed before I took it over, but it's typically done within the NetApp Cloud Manager system. Once we connect to the Azure portal or subscription, we push out the CVO from there.