To enable slew mode on NTP service of AIX, you should enable both boot-time slewing mode and run-time slewing mode.
Enable at Boot-Time
We configure xntpd service in /etc/rc.tcpip with "-x" option so as to enable slew mode on a reboot.
[root@primary01 /]# vi /etc/rc.tcpip
...
# Start up Network Time Protocol (NTP) daemon
start /usr/sbin/xntpd "$src_running" "-x"
Make sure you add "-x" to enable slewing option.
[root@primary01 /]# grep xntpd /etc/rc.tcpip
start /usr/sbin/xntpd "$src_running" "-x"
By doing this, we can prevent PRVG-1036 and pass the pre-installation check of Oracle software 19c installation.
Enable at Run-Time
Configure NTP service.
[root@primary01 /]# vi /etc/ntp.conf
#broadcastclient
slewalways yes
server 10.1.2.100 prefer
...
Change service attribute.
[root@primary01 /]# chssys -s xntpd -a "-x"
0513-077 Subsystem has been changed.
Restart NTP daemon.
[root@primary01 /]# stopsrc -s xntpd
0513-044 The /usr/sbin/xntpd Subsystem was requested to stop.
[root@primary01 /]# startsrc -s xntpd
0513-059 The xntpd Subsystem has been started. Subsystem PID is 55705898.
Check service process.
[root@primary01 /]# ps -ef | grep xntpd | grep -v grep
root 55705898 6357482 0 18:59:31 - 0:00 /usr/sbin/xntpd -x
By doing this, we can prevent PRVG-1032 and pass the pre-installation check of Oracle software 19c installation.
Done!