System clock error

[juno2]

I run RH8 on my server , the system clock always run faster than normal ( about 10 minutes per week ) , how can I fix it ? thx

[Vitaly Karasik_1]

check http://users.dslextreme.com/~craig.lawson/linux_notes/clock.html#manual_assessment_of_drift

Manual Drift Assessment for the Hardware Clock

I hope it'll help you.

regards,
Vitaly

[Cristian Draghici_1]

Better yet, rely on accurate time sources. Use NTP.

See http://www.tldp.org/HOWTO/TimePrecision-HOWTO/ntp.html

Cheers
Cristi

[Jerome Henry]

It seems that your problem is lasting since
http://forums.itrc.hp.com/cm/QuestionAnswer/1,,0xacc568da2286d711abdc0090277a778c,00.html
It may be a hardware issue... So best solution would be ntp, as suggested (apart from changing BIOS battery).

Don't forget also that system tries to synchronise on reboot hardware time and system time, if one makes problem, then it may influence the other (kind of set time = time +1s process running somewhere). You mayn search for long before finding it... Try to observe anyway if this run happens during machine working time, machine idle time, or reboot...

hth

J

[Steven E. Protter]

My HP-UX boxes gain or lose 15 minutes a week if they aren't configured with ntp. One of mine once thought it was next week.

The real problem is that the ntp port is blocked on most networks. The second problem is the standard ntpd server that ships with Windows is NOT unix compliant.

If the port is open, use the links below to pick a time server. There is a good ntp client/server for nt in these links as well.

ntp was INVENTED by Dr. David Mills and I'm putting in his web site too.

http://www.eecis.udel.edu/~mills/

http://www.ntp.org/documentation.html

http://developer.novell.com/research/appnotes/1999/july/03/02.htm

http://www.tymserve.com/success_tva.html

http://www.endruntechnologies.com/ntp.htm

SEP

[Huc_1]

Perhaps, if you have more then one Unix on your lan You could set one that run's accuratly as an ntp server and the lazy one as a client ?

just my 2 cent worth

As stated above a check to motherboard battery could also help

Jean-Pierre