We are currently using a SQL Server 2008 Failover Cluster, running on a Win2008 WSFC with 2 nodes, with a shared SAN drive.
Now we are evaluating the possibility of switching to use an AlwaysOn Availability Group with 2 nodes.
1 primary replica for read-write, and 1 secondary replica for read-only.
SQL Server 2014 running on Win2012R2 WSFC should be used.
We would like to know the hardware and network requirements for such setup.
I read some info about this:
https://msdn.microsoft.com/en-us/ff929171.aspx
https://msdn.microsoft.com/en-us/library/cc645993.aspx
https://msdn.microsoft.com/en-us/library/ff878487.aspx
And below are my understanding. Can anyone correct me if I am wrong, and enlighten me on the points that I still don't know?
If there are any other requirements or constraints, I would also like to know.
SQL Server 2014 Edition?
Enterprise Edition only.
Enterprise Edition only.
Witness server? Or any 3rd server other than the 2 nodes?
Not required.
Shared storage (SAN, network drive, any kind of shared storage)?
Not required.
Quorum drive? (In our existing Win2008 WSFC, the shared SAN drive contains a volume specifically for quorum. Is this still required in Win2012R2 WSFC?)
??
Dedicated network card for heartbeat?
Recommended
Dedicated private network for heartbeat?
??
??