Setting up a backup master domain manager

Ensure that the master domain manager and the backup master domain manager have FullStatus turned on in the workstation definition. This is important if you need to resort to long-term recovery, where the backup master domain manager generates a Symphony file (runs JnextPlan). If FullStatus is not turned on, the former master domain manager shows up as a regular fault-tolerant agent after the first occurrence of JnextPlan. During normal operations, the JnextPlan job automatically turns on the FullStatus flag for the master domain manager, if it is not already turned on. When the new master domain manager runs JnextPlan, it does not recognize the former master domain manager as a backup master domain manager unless the flag is enabled. The former master domain manager does not have an accurate Symphony file when the time comes to switch back.

Also ensure that the backup master domain manager is synchronized with respect to time with the master domain manager. The securest way is to use a Network Time Protocol Server to control the time on both systems, with the same repeat interval.