topic Re: How to set system clock smoothly in Operating System - HP-UX

How to set system clock smoothly

Volker Borowski — Thu, 26 Apr 2001 14:35:21 GMT

Hello,

is there a third party tool, which can adjust the clock within a given range of hours, to avoid a jumping time ?

I think of a command like

"loose 20 min within the next 6 hours"
or
"win 50 min within the next two days"

Volker

Re: How to set system clock smoothly

MANOJ SRIVASTAVA — Thu, 26 Apr 2001 14:40:45 GMT

I think you need to setup NTP on the local server and point to to any time source all you have to do is to edit /ntp/conf and start the ntp daemon . Please note the time source can be set to local host too or any host with the required time diff. check for www.docs.hp and search for NTP .

Manoj

Re: How to set system clock smoothly

James R. Ferguson — Thu, 26 Apr 2001 14:41:02 GMT

Hi Volker:

With 11.x, 'date [-a [-]sss[.fff]]' will do the adjustment backwards or forwards in the fashion you asked.

...JRF...

Re: How to set system clock smoothly

Vincenzo Restuccia — Thu, 26 Apr 2001 14:44:24 GMT

You can see http://docs.hp.com/cgi-bin/fsearch/framedisplay?top=/hpux/onlinedocs/B2355-90685/B2355-90685_top.html&con=/hpux/onlinedocs/B2355-90685/00/00/63-con.html&toc=/hpux/onlinedocs/B2355-90685/00/00/63-toc.html&searchterms=ntp&queryid=20010426-084242 for NTP.
Or ntpdate host_clock in crontab.

Re: How to set system clock smoothly

Volker Borowski — Thu, 26 Apr 2001 14:49:22 GMT

Thanks guys,

James: unfortunately I need this on 10.20, but I never noticed this extension for 11.0, Thanks!

MANJO, vincento: I think NTP would be a bit oversized in this case. The environment is simply two servers, I can let one follow the other with a remsh-script. But the leading machine is drifting at about 3 Minutes a month.
I do not like to setup NTP for this.

Thanks
Volker

Re: How to set system clock smoothly

James R. Ferguson — Thu, 26 Apr 2001 14:54:11 GMT

Hi again:

Take a look at the links I cited in this thread:

http://forums.itrc.hp.com/cm/QuestionAnswer/1,1150,0xd3f6a12d6d27d5118fef0090279cd0f9,00.html

'ntp' is quite easy to setup and with an external clock will keep both your servers nailed.

Regards!

...JRF...

Re: How to set system clock smoothly

Stefan Schulz — Fri, 27 Apr 2001 06:36:54 GMT

Hi Volker,

i had a similar problem some time ago. Do a search on this forum. I think the thread was something like "slowing system clock down". Andreas Voss posted a small C-Programm (adjusttime.c) which did exactly what i needed.

Seems to me that this small programm could solve your poblem also.

Hope this helps. Stefan

Re: How to set system clock smoothly

Andreas Voss — Fri, 27 Apr 2001 07:50:28 GMT

Hi,

put you my c-program at attachment.

Regards