Images: NSI Software's DoubleTake Part 2

Adding a Target machine

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Adding a Monitor

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On this window, you can select your failover to be Automatic or Manual. Secondly, you can also decide what items you want to failover. Once you have chosen your options, click Scripts.

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This is where you will attach your postover and preback batch file scripts. In the event of a failover, the scripts will shut down the specific services and start them on the Target server. When a failback occurs, it will do the opposite. Without attaching these scripts, this functionality will not work.

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The SQL Servers that DoubleTake is currently monitoring

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When a failover occurs on the Source machine, your target machine will begin to process the requests for both machine names and IP addresses as shown in here.

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From the Failover Control Center, shown here, you can test the failover process.

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Performing a manual failover to test the setup.

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The manual failover in progress

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Once the failover is complete both IP addresses will respond to ping commands and requests from the network until you fix the downed server.

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The downed server

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