Hi Experts
We are in process to build multi-site cluster (two sites). Every site will have two SQL Servers 2012 with Windows Server 2012 R2. I tried to find a way to create Multi-Site Cluster and came to know that we can add all Four servers as a part of WSFS and create Always-ON with two Listener IPs.
Please check this link : http://blogs.msdn.com/b/sambetts/archive/2014/05/16/building-true-multi-subnet-windows-server-failover-clusters.aspx
I also got to know that Quorum Share must be a part of third network. based on these info I got pretty good Idea but Not getting few things. Please help me.
1.Do we need separate SAN storage (LUN) for each Node (all 4 nodes) or one LUN can be mapped for 2 nodes participating in Always-ON in each site?
2. Why we need storage replication between the sites (as shown in below diagram)? Does it mean separate LUN will be mapped to two Servers in each site and LUN replication is enabled using SAN feature.
3. What is the minimum latency required for stretched cluster between the site?
4. Let's say if One Server-A in Site-1 goes down which server will take over? Server-B in Site-1 or what?
4. if any good ref doc/link please link me
Thanks Cloudy Lynx