Sidewinder G2 6.1.1 Administration Guide - Glossary of Technical ...

Configuring HA
16-12 High Availability
b. In the Ping the Remote Test IP field, specify how often (in seconds)
the HA cluster will ping the remote address to ensure that an
interface and path are operational.
c. In the Consecutive ping failures before takeover field, specify the
number of failed ping attempts that must occur before a secondary/
standby takes over as the primary.
If the primary becomes unavailable immediately after a ping
attempt has been issued, the time it takes for a secondary/standby
to take over will be slightly longer (this is because it will take close to
an entire test interval before the first failure is detected).
d. [Conditional] The Force ARP Reset area lists the IP address and burb
of each system that you determine needs to update its ARP cache
with the new cluster alias IP. Use this area to list all systems that are
known to ignore gratuitous ARPs, but that need to know the new
cluster alias.
Note: This area is not available if you are configuring Load Sharing HA.
To define a system to be included in the Force ARP Reset list, click
New. The Force ARP Reset window appears. Enter the IP Address and
select the burb for the system, and then click OK.
To modify an entry, highlight the appropriate entry and click Modify.
To delete an IP address from the list, highlight the address and click
Delete.
13. The State Change Summary window displays a list of the actions that
will be performed when you click Execute.
Important: The Sidewinder G2 will be automatically rebooted after the transition
process is complete. Carefully review the changes before you click Execute, as
changes you make after initially executing the state change will require an additional
reboot.
If you want to make changes to your configuration before executing,
click Back to navigate to the appropriate window(s) and make the
necessary changes.
When you are satisfied with the summary of changes, click Execute. A
progress bar will appear while the configuration changes are made. If
the transition is successful the Success window appears, displaying the
new state, and the Sidewinder G2 will automatically reboot. Click Finish.
To add an additional cluster member, see “Joining a Sidewinder G2 to an
existing HA cluster” on page 16-13.