There appears to be a great deal of conflicting information about whether or not SAN is required for a Sql Server 2012 Mirroring setup.
I currently have an Active-Passive-Witness SQL 2008R2 setup where each of the machines in the setup have plain old DAS raid arrays.
I would like to implement exactly the same again with SQL Server 2012, however much of the online documentation (e.g. Prerequisites, Restrictions, and Recommendations for AlwaysOn Availability Groups (SQL Server) - http://msdn.microsoft.com/en-us/library/ff878487.aspx) suggests each node in the "AlwaysOn Availability Group" must be a node of a Windows Server Failover Clustering (WSFC) cluster.
I'm not trying to set up a SQL Server Failover Cluster - only database mirroring between two instances of SQL Server (active-passive-witness).
When I look up the requirements for setting up a Windows Server Failover Clustering (WSFC) cluster I always see SAN / shared storage as a requirement.
However I have seen a pretty definitive answer to my question here: "AlwaysOn Availability Groups do not require deployment of a Failover Cluster Instance or use of symmetric shared storage (SAN or SMB)." - http://msdn.microsoft.com/en-us/library/hh270278.aspx - but am unsure what to believe.
Has anybody out there tried an Active-Passive-Witness mirroring setup with SQL Server 2012 and "AlwaysOn Availability Groups" where you didn't need to use SAN / shared storage?