Has anyone had any experiencing combining SQL Server Clustering with Storage level HA (block level mirror with automated failover at the storage level). I work for a small iSCSI storage vendor and we are developing the ability to build HA from the storage level (I know this is nothing new! Others in the space are already doing it) however I am wondering if this an option that is considered viable in the SQL Server community? (assuming the price was right), combining Application clustering with a clustered iSCSI storage solution.