Regarding Alwayson

Dears,

In my main site we have a 6 nodes failover cluster SQL 2012 (Active /Passive Instances).

The request is to have single server in DR site with always on replication.

My Understanding for this point, and please correct me if I am wrong:

1. I have to build SQL server in DR site which must be member of main site SQL cluster.
2. I have to change the witness from Node and Disk Majority to Node and Share Majority.
3. If the DR site SQL is in different VLAN, then I have to add an IP address for failover cluster to DR site, and manually add the DNS Record.
4. I will not be able to Automatic failover using always on coz I have FCI.

The thing that I am not understanding:

• Is this going to work since I do not have Alwayson in main site?
• Shall I deploy Passive SQL Nodes on the DR Site server orNew Named Instance Active Nodes?
• What will happen if my main site SQL-Instance-1 fail from MainSite-Node1 to Main-Site-Node2? Is the alwayson to dr site will continue to work?

Thanks