This task reconfigures the failed resource and the IAPI Object to use an alternate domain controller and usnChanged starting point. The task input form displays the available usn-changed times for a given host from the stored failover data.
Certain errors can identify conditions where failover is appropriate. One example of the potential difficulty of automatically calling the failover task is the java.net.UnknownHostException error message. The failure indicated by this message can occur for at least two reasons:
The host cannot be reached from the gateway machine due to a temporary routing issue.
The host cannot be reached and will be down for the next eight hours due to a planned outage.