topic Re: Impact of Timezone change in HPUX 11.23. in Operating System - HP-UX

Impact of Timezone change in HPUX 11.23.

hpuxadm1 — Fri, 22 Oct 2010 08:34:08 GMT

Hello All ,
Currently server is running with METDST Timezone. Below is the output from date command"-

Fri Oct 22 11:30:51 METDST 2010

enrty from /etc/TIMEZONE :-

TZ=MET-1METDST
export TZ

I need to change it to CEST ..

CAn it have any impact on runnig applications .
Also can you suggest procedure for same ?

Re: Impact of Timezone change in HPUX 11.23.

Pete Randall — Fri, 22 Oct 2010 09:07:19 GMT

I honestly don't know if there would be consequences but I fear there might be. I would stop running applications, particularly database apps. To change the TZ, I would run "/sbin/setparms timezone", which will ask you to reboot once it finishes - another hint that applications need to be stopped/started.

Pete

Re: Impact of Timezone change in HPUX 11.23.

likid0 — Fri, 22 Oct 2010 09:53:50 GMT

Hi,

As Pete says, the couple of times I have to change the time zone, I have stopped all the running applications, and changed it with the set_parms command and gave it a reboot.

Re: Impact of Timezone change in HPUX 11.23.

Dennis Handly — Fri, 22 Oct 2010 16:55:04 GMT

>I need to change it to CEST.
>Can it have any impact on running applications? Also can you suggest procedure for same?

I would go ahead and change the file.
When do you need to have the changes be effective? Long running processes will not see the changes until they are restarted or you reboot.

Re: Impact of Timezone change in HPUX 11.23.

vishnu.khandare — Sun, 24 Oct 2010 03:44:39 GMT

Hi,

Yes U can go ahead to change the timezone by changing it in file.
Yes its having impact on running application.
Before u change u should stop application.
n start after changing timezone.

Procedure to change the timezone, u can change in file or by set_parms timezone it will ask for reboot for active the changes.

Hope this solves ur qery.
Don't forget to assign points.

Regards
Vishnu Khandare

Re: Impact of Timezone change in HPUX 11.23.

SoorajCleris — Sun, 24 Oct 2010 03:56:51 GMT

Hi,

As everyone suggested you may change that using set_parms or in file.
ofcourse your application/datebase should be stopped. (safe methode)

This will change your current time, according to timezone.

Just check your cron jobs will not be effected by this.

Regards,
Sooraj

Re: Impact of Timezone change in HPUX 11.23.

Satish Chalapati — Tue, 26 Oct 2010 09:46:33 GMT

You have to take care of crontab as well. In one of the date change cases i forgot cron and resulted in some issues.