SITEB> hdbnsutil -sr_register --name=SITEB --… (HANA system stopped, SITEB=SEC)
SITEB> sapcontrol -nr <instance> -function StartSystem (system replication will start when SITEB is completely started)
yes, this is the only way to fail back, also if you ask me 10 more times 😉
SIDE STORY: DISASTER IN SITEB OCCURS WHILE SITEB=SEC
Not much to do, once SITEB is recovered and restarted system replication will re-sync
Happy XMAS and bye for now,
PS: Executing this commands in the wrong order might lead into a HANA system which does not start anymore. So be careful! And I know what I am talking about after searching for hours to find the root cause and then figuring out it was created by myself.