After you configure the SMS HA cluster, you can adjust its timeout values. For example,
if the primary and secondary servers are located in different geographic regions or
if you experience intermittent connectivity issues, you can increase the HA timeout
values to prevent a heartbeat failover. However, if the two SMS servers are co-located
or are on a low latency network, use the default timeout configuration values (three
minutes for the total heartbeat timeout and five minutes for the mitigation timeout).
If the passive and active server-to-server communication is lost, the passive SMS
initiates a mitigation process, which may include restarting the SMS. Set the time
the passive SMS spends on mitigation in the Mitigation Timeout field.
When the passive SMS detects a health check failure, the maximum time the SMS spends
on the recovery process is the sum of the Total Heartbeat Timeout and Mitigation Timeout
fields.
Procedure
- Click Timeouts.
- In the dialog box, adjust the total heartbeat and mitigation timeout values as needed.