Hp Storage Mirroring V5 Software Manual do Utilizador descarregar pdf (Página 52)

42 Protecting a SQL Server

Failover settings

The Failover tab includes options that will be applied during SQL failover.

Failover enabled

Select the Failover Enabled option to enable or disable failover for the selected source/target pair.

Failover type

Failover Type indicates what name resolution method will be used to redirect users to the target SQL server in

the event of a source failure. By default,

DNS Failover is selected.

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, CNAME, MX, and PTR-type DNS

resource records to point to the target.

In DNS Failover, the DNS records for the source server are modified to point to the target server’s IP address.

This allows clients to resolve the source SQL server name to the target server’s network name and IP address at

failover time. DNS Failover reduces the risk of duplicate server name and IP addresses on your network.

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Hp Storage Mirroring V5 Software Manual do Utilizador Página 52