Citation:
After a network failure, the primary database server is in online mode, and the secondary database server is in read-only mode. HDR is turned off on both database servers (state = off). When the connection is reestablished, you can restart HDR by issuing onmode -d secondary primary_name (par ex. prim_zt_net) on the secondary database server. Restarting HDR might not be necessary because the primary database server attempts to reconnect every 10 seconds and displays a message regarding the inability to connect every 2 minutes. You do not have to use onmode restart the connection.
Si le serveur secondaire perd la connexion pendant les travaux de maintenance le serveur primaire va essayer automatiquement de se reconnecter au secondaire.