NTP time problem

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Operating Systems AIX NTP time problem
# 1  
Old 12-04-2013
Wrench NTP time problem

I got an ntp time problem on AIX server.

os version is AIX7.1

i got below output,when i run the below command
 4 Dec 12:50:49 ntpdate[34209840]: 3.4y
server xxxxxxxxxxxx, port 123
stratum 5, precision -6, leap 00, trust 000
refid [xxxxxxxxxxx], delay 0.04141, dispersion 0.00021
transmitted 4, in filter 4
reference time:      d649a1e9.ff99a705  Wed, Dec  4 2013 12:43:21.998
originate timestamp: d649a3aa.088f6994  Wed, Dec  4 2013 12:50:50.033
transmit timestamp:  d649a3aa.0c5de000  Wed, Dec  4 2013 12:50:50.048
filter delay:  0.04152  0.04141  0.04141  0.04141
               0.00000  0.00000  0.00000  0.00000
filter offset: -0.01428 -0.01454 -0.01475 -0.01495
               0.000000 0.000000 0.000000 0.000000
delay 0.04141, dispersion 0.00021
offset -0.014544

 4 Dec 12:50:50 ntpdate[34209840]: adjust time server xxxxxxxxxxx offset -0.014544

please can some one help me on this sync time problem with peers

Last edited by bartus11; 12-04-2013 at 09:44 AM.. Reason: fixed code tags
# 2  
Old 12-04-2013
What you think is wrong in this?

You might see some milliseconds delay.

Try the command couple of times.
# 3  
Old 12-04-2013
 Nagios monitoring tool alerting as below.may be its not syc

Service: NTP Time
Command: check_mk-ntp.time
Output: CRIT - found 2 peers, but none is suitable

# 4  
Old 12-04-2013
ntpq -np

# 5  
Old 12-04-2013
bash-3.2# ntpq -np
     remote           refid      st t when poll reach   delay   offset    disp
*xx.xxx.xx.xxx   xx.xxx.xx.xx     5 u  124  128  377     1.01   -5.592    3.80
+xx.xxx.xx.xxx   xx.xxx.xx.xx     5 u   33  128  377     3.52    7.586    3.86

# 6  
Old 12-04-2013
Two peers, both work.
Something must be wrong with your Nagios check!
# 7  
Old 12-04-2013
It is usually not a good idea to use two remote ntp servers. If there is a difference, who should the host believe?

With two, it is impossible to tell which one is better, because you don't have any other references to compare them with.
This is actually the worst possible configuration -- you'd be better off using just one upstream time server and letting the clocks run free if that upstream were to die or become unreachable.
ntp: 5.3.3. Upstream Time Server Quantity.

Last edited by Scrutinizer; 12-04-2013 at 04:29 PM..
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