IBM Storwize V7000 Unified Series Problem Determination Manual page 196

As NTP is drift based, large time differences can prevent NTP from synchronizing,
or cause synchronization to take a long time. It can be helpful to synchronize time
manually once and to verify that the time is picked up correctly afterward. Use the
separate commands of service ntpd stop, ntpdate your IP, and service ntpd
start. The following example shows the sequence:
[root@domain.node ~]# service ntpd stop
Shutting down ntpd:
[root@domain.node ~]# ntpdate 9.19.0.220
14 Jan 12:06:46 ntpdate[25360]: adjust time server 9.19.0.220 offset 0.003277 sec
[root@domain.node ~]# service ntpd start
Starting ntpd:
[root@domain.node ~]#
After the time on all of the servers is synchronized, you can verify that the logs
apply to your troubleshooting situation.
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