Oracle12c DB Service failover Behavior change

-bash-4.1$ srvctl stop instance -h

Stops the database instance.

Usage: srvctl stop instance -db {-node | -instance } [-stopoption ] [-force] [-failover]
-db Unique name for the database
-node Node name
-instance “” Comma separated instance names
-stopoption Options to instance shutdown command (e.g. NORMAL, “TRANSACTIONAL LOCAL”, IMMEDIATE, or ABORT)
-force Forcibly stop the instance and any running services.
-failover Allow the running services to fail over to another instance
-help Print usage
-bash-4.1$
-bash-4.1$
-bash-4.1$ srvctl stop instance -d blrdb -s ndb1 -f
PRKO-2002 : Invalid command line option: -s
-bash-4.1$
-bash-4.1$ srvctl stop instance -d blrdb -i ndb1 -f
Invalid instance name(s): ndb1
-bash-4.1$
-bash-4.1$ srvctl stop instance -d blrdb -i blrdb1 -f
-bash-4.1$ srvctl start instance -d blrdb -i blrdb1
-bash-4.1$
-bash-4.1$
-bash-4.1$ srvctl stop instance -d blrdb -i blrdb1 -failover
-bash-4.1$
-bash-4.1$ srvctl start instance -d blrdb -i blrdb1