3. installation"fail-over cluster"function
3.1 Open Server Manager on SQL01 and click on "Add Roles and Features"
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3.2 Next
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3.3 Next
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3.4 Next
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3.5 Next
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3.6 Tick "Failover cluster", next
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3.7 Click "Install"
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3.8 Click "Close" when successful installation is complete
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3.9 The same steps complete the installation of the Failover Clustering feature in Server SQL02, as follows:
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This article is from the "Huang Jinhui column" blog, be sure to keep this source http://stephen1991.blog.51cto.com/8959108/1694741
SQL Server AlwaysOn High Availability configuration three: Installing the Failover Cluster feature