is High Availability something to describe Log Shipping and Always On ( replica )?
is Always on something to describe Log Shipping and High Availability?
I'm studying to get my certification 40-762 but I need to study a lot about these topics ( since i'm bad in this part on online tests ).
But even looking at Microsoft's website I'm confused about these topics. I know something about log shipping and replica, But I would like a point to study, and looking for "always on" and "high availability" not knowing what they are is a bit hard.
So, how can I describe them?
The AlwaysOn Availability Groups feature is a high-availability and disaster-recovery solution that provides an enterprise-level alternative to database mirroring. Introduced in SQL Server 2012, AlwaysOn Availability Groups maximizes the availability of a set of user databases for an enterprise. An availability group supports a failover environment for a discrete set of user databases, known as availability databases, that fail over together. An availability group supports a set of read-write primary databases and one to eight sets of corresponding secondary databases. Optionally, secondary databases can be made available for read-only access and/or some backup operations.
And does "availability groups" is when i have log shipping and replicas in the same server?