CRS-4700: The Cluster Time Synchronization Service is in Observer mode.

CTSS is in Observer mode due to ntpd running on RAC hosts

[grid@racnode01~]$ crsctl check ctss

CRS-4700: The Cluster Time Synchronization Service is in Observer mode.

[grid@racnode02~]$  crsctl check ctss

CRS-4700: The Cluster Time Synchronization Service is in Observer mode.

 

Stop crs from both nodes:

root@racnode01:# ./crsctl stop crs

root@racnode02:# ./crsctl stop crs

 

 Stop and disable ntpd service, also remove conf file:

#service ntpd stop

#chkconfig ntpd off

 

# mv /etc/ntp.conf /etc/ntp.conf_bkp

mv: overwrite ‘/etc/ntp.conf_bkp’? y

 

# rm -rf /var/run/ntpd.pid

 

For Linux 7:

[root@~]# systemctl stop chronyd

[root@~]# systemctl disable chronyd

rm '/etc/systemd/system/multi-user.target.wants/chronyd.service'

--Delete or rename /etc/chrony.conf file

[root@~]# mv /etc/chrony.conf  /etc/chrony.conf_old

 

Start crs from both nodes:

root@racnode01:#./crsctl start crs

CRS-4123: Oracle High Availability Services has been started.

root@racnode02:#./crsctl start crs

CRS-4123: Oracle High Availability Services has been started.

 

Verify CTSS status now. It will be in active mode

[grid@racnode01 ~]$ crsctl check ctss

CRS-4701: The Cluster Time Synchronization Service is in Active mode.

CRS-4702: Offset (in msec): 0

[grid@racnode02 ~]$ crsctl check ctss

CRS-4701: The Cluster Time Synchronization Service is in Active mode.

CRS-4702: Offset (in msec): 0