HP StorageWorks Storage Mirroring Recover User's Guide (T5437-96008, November 2009)

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If you do not need to change the configuration settings, Validate the configuration, then
enable protection.
If you have already enabled protection for a connection and need to change the
configuration parameters, you will first need to disable protection.
Next step:Configure failover settings
Configuring failover settings
If you have not done so already, launch the Protecting a SharePoint Server workflow.
The Failover tab includes options that will be applied during SharePoint failover.
The following topics explain how to configure the options on the Failover tab:
Failover type
Failover Type indicates what name resolution method will be used to redirect users to
the target SharePoint server in the event of a source failure. By default, DNS Failover is
selected.
DNS failover
Identity failover
DNS failover
DNS Failover is the recommended method for failover. Use this option if you want to
failover by updating the DNS records associated with the source. This will modify all
source server A, MX, and PTR-type DNS resource records to point to the target.