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

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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 SharePoint server name to
the target server’s network name and IP address at failover time. DNS Failover
eliminates duplicate server name and IP addresses on your network.
After you select the DNS Failover option, click Configure. The Configure DNS Failover
window will appear.
Configure the following information for DNS failover:
1. To add additional DNS server IP addresses, type the IP address into the DNS
Server field, then click Add.
2. The list box under the DNS Server field contains all DNS IP addresses for the
source and target servers. The label after the DNS IP address indicates whether
the DNS IP address belongs to the source, target, or both.
Note:
To remove an IP address from the DNS server list, select the IP address,
then click the Delete button.
3. In the Source IP column, select the checkbox next to the source IP address(es) to
be monitored for failover.
4. In the Target IP column, select the target IP address to be used when failover
occurs.
Note:
If the target is monitoring multiple source IP addresses for failover, each
monitored source IP address must be mapped to a unique target IP address.