This post is about the introduction to SQL Server high availability. Here we would be talking about the various replication options available in SQL Server using which you can achieve High availability locally, and disaster recovery across sites. With the rise of hybrid cloud deployments, we have got an interesting set of new topologies to achieve HA and DR. Read along to know more about these methodologies to know more.
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Microsoft SQL Server provides services to a lot of mission critical applications across verticals. It becomes an important factor to ensure that all the servers are up and running continuously with minimal disruptions.
SQL Server Downtime causes customer revenue loss and decreased staff productivity.
With High Availability (HA) and Disaster Recovery (DR) planning, you can:
SQL Server Clustering on a Windows Cluster
Replication Services (Snapshot, Merge, Transactional, P2P Transactional)
With Always On Availability groups, you have the following advantages:
With the release of SQL Server 2014, Microsoft introduced some minor enhancements in Always On Availability groups feature.
With SQL Server 2016, Microsoft Removed “Database Mirroring” with an Availability group Standard Edition.
You can also use Azure replica Wizard to deploy SQL Server Availability Groups to the Azure Cloud. They have the following benefits:
In my next post, I will talk about all the HA and DR technologies in detail.
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