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What is a SQL Server availability Group?
A read-scale availability group is a group of databases that are copied to other instances of SQL Server for read-only workload. An availability group supports one set of primary databases and one to eight sets of corresponding secondary databases. You can create any type of backup of a primary database.
How do I create availability group in SQL Server?
Open SQL Server Management Studio and connect to the SQL Server instance. Expand the Always On High Availability folder in the Object Explorer. Right-click on the Availability Groups folder and select the New Availability Group Wizard… option launching the New Availability Group Wizard.
What is basic availability group in SQL?
A basic availability group supports a failover environment for a single database. It is created and managed much like traditional (advanced) Always On Availability Groups (SQL Server) with Enterprise Edition. The differences and limitations of basic availability groups are summarized in this document.
How do I add database to availability group?
To add one or more databases by specifying them in the Availability Group Properties dialog box, select the Properties command. The steps for adding a database are as follows: In the Availability Databases pane, click the Add button. This creates and selects a blank database field.
What is always on availability groups?
The Always On 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 (11.x), Always On availability groups maximizes the availability of a set of user databases for an enterprise.
What is high availability SQL?
SQL Server High Availability means 24×7 availability of database for seamless usage even during planned or sudden outages. It is important to ensure High Availability in case of some catastrophic events.