To improve the availability of your plugin role, you can add a secondary server on standby. If the primary server hosting the role becomes unavailable, the secondary server is automatically used.
Before you begin
- Ensure that you have an expansion server available as a secondary server for your plugin role. If you do not have an expansion server available, add an expansion server to your system.
- If your plugin role is hosted on the
main server, you must first move it to an expansion
server.NOTE: If you must host the plugin role on the main server, configuring the plugin role failover is not enough: you must also configure the Directory failover. Role failover is managed by the Directory role, and Directory failover is managed by the Directory Manager role. For more information, see Directory failover and load balancing.
- Ensure that the plugin role and the plugin role database are not hosted on the same server. All servers hosting the plugin role must have write access to the remote database server. For more information, see Connecting roles to remote database servers.
What you should know
IMPORTANT: Security Center does not handle the failover of role
databases. For roles that connect to a database, the database server must be hosted on a
third computer, separate from the servers hosting the role. All role servers must have
read and write access to the database server. To protect your data, perform regular
backups of the role database.