Default Configuration

The default CloudControl HA configuration is automatic failover with a default poll (health check) interval of 5 minutes, and a default timeout of 30 minutes, as shown in the table below.

Setting	Default Value	Minimum Value	Description
Failover Mode	Automatic	N/A—Either change the timeout value or use the `asc ha --failover manual` command to manually failover when needed.	The secondary CloudControl node will automatically promote itself to the primary CloudControl node when the timeout clock expires.
Health Check Poll Interval	5 minutes	2 minutes	The health check polling interval time period between primary and secondary CloudControl nodes.
Data Sync Interval	10 minutes	2 minutes	The data synchronization period between nodes.
Timeout	30 minutes	2 minutes	The minimum time threshold before an automatic failover event occurs.

If the secondary CloudControl node determines during one of its health checks that the primary CloudControl node is not healthy, the timeout clock starts. If during the timeout period, a subsequent health check determines the primary CloudControl node is healthy, the timeout clock resets. If not, when the timeout clock expires the secondary CloudControl node will automatically promote itself and become the primary CloudControl.

We recommend that you configure both email (SMTP) and SNMP notifications when using HA. HA details are also logged in the /var/log/asc/htcli.log file. See the Administration Guide for HyTrust CloudControl for details on configuring SMTP and SNMP notifications.