Troubleshooting steps to follow when NTP servers are not accessible and responding.
Check the accessibility of NTP servers:
Check the status of the NTP server (i.e., NTPD service) on the host machine. Refer to the man page for NTP service on the host machine.
The commands to check the status of the NTPD service on Linux and Solaris are:
a) Linux - service ntpd status
b) Solaris - svcs -a | grep ntp
If the NTPD service is not running, you must restart the NTPD service on the host machine. Refer to the man page for the NTPD service command to restart the NTPD service.
The commands to restart the NTPD service on Linux and Solaris are:
a) Linux - service ntpd restart
b) Solaris - svcadm restart ntp
Also, restart the time service on the Data Mover from the Control Station using the following command:
server_date <server_x> timesrvc stop ntp \n
server_date <server_x> timesrvc start ntp \n
Check the connectivity of the NTP server on the host machines with the Data Mover by using the following command on the Control Station:
server_ping server_x <IP_address of the NTP server machine>
If the host machine is not accessible, check the network configuration or contact your network administrator.
If the host machine of the NTP server is down, you must boot the host machine and start the NTPD service. Refer to the man page of the NTP server service to start the NTP service.
For any other issue, you must restart the time service on the Data Mover.
Also refer to Knowledegbase solution ID emc216954 for more information on the issue.