Time Synchronization issues on NOWS server

  • Document ID:7006795
  • Creation Date:06-Sep-2010
  • Modified Date:26-Apr-2012
    • Micro Focus Products:
      eDirectory

Environment

Novell Open Workgroup Suite Small Business Edition (NOWS SBE) 2.5
Novell Open Workgroup Suite Small Business Edition (NOWS SBE) 2.0

Situation

Time Synchronization drifts by few minutes or hours on NOWS
Time Synchronization issues on NOWS

Resolution

Workaround Steps:
Edit /etc/crontab and type the following command to restart NTP every 10 minutes
*/10 * * * * root /etc/init.d/ntp restart

Corrective Actions:
Please follow the steps listed below if Time Provider Server is being used
  1. Edit /etc/ntp.conf.
  2. Make sure that the IP Address of time server is added in the following format
    server IPAddress
  3. Save the file and restart ntp daemon by typing rcntp restart.
  4. Make sure that server in question and Time Server are able to communicate with each other.
  5. Edit /boot/grub/menu.lst and add clock=pit for 32 bit kernel and clock=pmtmr for 64 bit kernel
    Example:
    kernel /vmlinuz-2.6.27.42-0.1-default root=/dev/sda6 resume=/dev/sda1 splash=silent crashkernel=128M-:64M@16M showopts vga=amd0x314 clock=pit

    kernel /vmlinuz-2.6.27.42-0.1-default root=/dev/sda6 resume=/dev/sda1 splash=silent crashkernel=128M-:64M@16M showopts vga=0x314 clock=pmtmr
  6. Restart the server after making the above changes.
  7. If the server is running in a VMware Environment, make sure that the VMware tool is installed. This can be done by right click on the server image running in VMware and click on the option install VMware tools and follow the VMware Documentation. If the server is running in a Hyper-V Environment, then disable clock sync in the integration service.

Additional Information

Troubleshooting Steps:
"ndsrepair -T" can be used to check for Time Sync issues. Any time drift between + and - 2 seconds is acceptable but when it is beyond this time limit, it causes replication and synchronization issues

Notes:
In order to make sure that the VMware tool is installed properly, follow below link:
https://support.microfocus.com/kb/doc.php?id=7920509&sliceId=1&docTypeID=DT_TID_1_1&dialogID=165840131&stateId=0%200%20165838228