User's Manual

Troubleshooting and Recovery 325
The CMC provides tools to troubleshoot these problems, with the primary
source of troubleshooting information being the CMC trace log. This log will
contain an error message for NTP related failures. If the CMC is unable to
synchronize with any of the remote NTP servers that have been configured,
then it will derive its timing from the local system clock.
If the CMC is synchronized to the local system clock rather than a remote
time server, the trace log will contain the an entry similar to the following:
Jan 8 20:02:40 cmc ntpd[1423]: synchronized to
LOCAL(0), stratum 10
If you believe that the NTP servers have been correctly configured and this
entry is present in the trace log, then it is confirmation that the CMC is not
able to synchronize with any of the configured NTP servers.
There may be other NTP related trace log entries to assist in your
troubleshooting effort. If it is a NTP server IP address misconfiguration
problem, you may see an entry similar to the following:
Jan 8 19:59:24 cmc ntpd[1423]: Cannot find existing
interface for address 1.2.3.4 Jan 8 19:59:24 cmc
ntpd[1423]: configuration of 1.2.3.4 failed
If an NTP server setting has been configured with an invalid host name, you
may see a trace log entry as follows:
Aug 21 14:34:27 cmc ntpd_initres[1298]: host name not
found: blabla Aug 21 14:34:27 cmc ntpd_initres[1298]:
couldn't resolve `blabla', giving up on it
See "Using the Diagnostic Console" on page 320 for information on how to
enter the gettracelog command to review the trace log using the CMC
GUI.
Interpreting LED Colors and Blinking Patterns
The LEDs on the chassis provide information by color and blinking/not
blinking:
• Steadily glowing, green LEDs indicate that the component is powered on.
If the green LED is blinking, it indicates a critical but routine event,
such as a firmware upload, during which the unit is not operational. It
does not indicate a fault.