Achieving SQL server high availability in a multi-platform environment
Todays organizations often manage SQL Server databases across various platforms, including physical, virtual, cloud, on-premises, hybrid cloud, and cloud-to-cloud environments. Managing individual instances of SQL Server in these diverse environments is challenging enough. How can you ensure that your key SQL Server databases are highly available -- meaning, accessible 99.99 percent of the time -- when so many platforms are involved?
Availability Zone Windows Failover Cluster Instance Windows Server Availability Groups Standard Edition
Source: betanews.com