SCP/SFTP Server High Availability

I currently have an HA pool set up for my Orion Server that is in a multi-subnet configuration. This server is also running the SCP/SFTP server that we use for numerous appliances" SCP/SFTP backups. I'm trying to figure out the best way to implement an HA solution for this particular function. I was considering doing the following to make it work. Feel free to let me know if this is an optimal way to do it or let me know if there is an officially supported/recommended way to do this.

1. Configure SCP/SFTP server on standby server.

2. Manually configure each user on the standby server so that users match between both servers.

3. Configure windows DFS between the servers for the SFTP_ROOT folder so that new files written into the directory are replicated to the standby servers.

4. Update SCP/SFTP clients to user virtual hostname instead of IP address.

Thanks in advance for any help with this.