|High Availability / Configuring Clusters|
You can configure your system to send email alerts to notify you when significant events affect your cluster.
Vocera provides the following cluster-related email messages:
"Warning: Failover occurred on Vocera cluster. New active server has host name <IP address>."
The new active cluster node sends this message to notify you that a failover has occurred.
"Standby cluster member <IP address> is no longer active. Reported by active server <IP address>."
The active cluster node sends this message to notify you that it has lost contact with a standby node.
"Warning: Your Vocera Platform cluster had multiple active nodes. The server that was active the longest [<IP address>] is still active. The other one [<IP address>] has automatically reverted to standby mode."
The active cluster node sends this message to notify you that Vocera has automatically healed a split brain state. If a split brain occurs, you will receive other email messages before this one, as described in Troubleshooting Network Problems and Clusters.
In environments with an unstable network, these email messages may be symptoms of underlying problems you need to address. See Network Problems and Clustering for additional information on interpreting these messages.
Use the SMTP settings in the Destinations tab to configure email address information for alerts. For more information, see Configuring SMTP Settings.