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Friday, July 13, 2012

Failover Clustering in Microsoft SQL Server

Failover clustering in Microsoft SQL Server is used for data availability.

Typically two machines are used in a failover cluster. One machine provides the basic services and the second is available to run the service when the primary system fails. 


The primary system is monitored periodically to check if it works. This monitoring may be performed by the failover computer or an independent system also called as cluster controller. 


In an event of failure of primary computer, the failover system takes control.

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