Maybe also usefull info, the replication task is still sync'en source and destination. Destination is still in a incosistent state. Is that maybe the cause why I can't start the fail-over task?
Have to say that this morning (before I started again all-over with config) the volumes were consistent and at that time it also didn't started.
Some of the log files that might be helpful are: ha-log,ha-debug, task.log, critical error. log, Heartbeat directory, drbd directory, dmesg, test, iscsi directory. It is an art to learn logs and it takes time to study them. Later we change the structure of the logs to better read them as there are hundreds of log files. Research and study them as I said it takes time to know them even for me