AlwaysOn
Always on feature provide high availability and disaster recovery solution. AlwaysOn maximizes the availability of a set of user databases for an enterprise and improve resource use. SQL Server 2012 provide option to make group set of database called Availability group which will be treated as individual entity.SQL Server 2012 can host multiple availability group. If any failover occur then flexibility to fail over one availability group to instance B, another availability group to ins
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