[ntp:questions] Re: Server time wandering even with ntpd

Michael Weber mweber at alliednational.com
Thu Apr 27 16:42:01 UTC 2006

Hello, Martin.

>>>> Martin Burnicki <martin.burnicki at meinberg.de> 4/27/2006 9:18:44 AM >>>
>Michael Weber wrote:
>> Greetings!
>> I'm brand new to this list so if this isn't the correct place for this
>> question, please flame gently.
>> I am running an Oracle database on two Dell 2650 servers.  I run a script
>> that resets the clock every night because after 24 hours the clock can be
>> as much as 45 seconds off.  I have 20 other servers, running lots of OS's
>> with no problem.  It's just these two servers which are the only two of
>> this model I have in house.
>I've heard similar things from people running Oracle under Windows, but you
>seem to run Oracle under some *ix version.
>It turned out that the problem was due to the IDE drives that were used. Do
>you also use IDE drives, or SCSI? Are the drives used by Oracle running in
>raw mode?
>ntpd can just try to synchronize the system clock, but it is unable to
>account for crap left by buggy hard disk drivers.

This server is running on a SAN so there are no IDE drives.  There are no hard drives at all, in fact.  All storage, except the CD, is through the fibre channel card.

I have also seen the IDE issue messing with the clock, but I didnt think it still had that effect when the only IDE device was a CD.


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