Configure protection settings, Failover settings, Failover enabled – HP Storage Mirroring V5 Software User Manual
Page 69: Failover type, Dns failover
HP StorageWorks Storage Mirroring Application Manager user’s guide
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Configure protection settings
If you do not need to change the configuration settings, continue with ”
page 87.
If you have already enabled protection for a connection and need to change the configuration parameters,
you will first need to disable protection, as described in ”
To change the default configuration parameters, click
Configure
from the main Application Manager window,
or select
Actions, Configure Protection
from the menu. The Configuration Protection window will appear.
The Configure Protection window has tabs for configuring failover, connection, and advanced settings. The
following sections describe the options on each of these tabs.
Failover settings
The Failover tab includes options that will be applied during file server 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 file 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 file 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.