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Home > Archive > Unix administration > October 2007 > timezone - dst calendar questions
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timezone - dst calendar questions
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| EdStevens 2007-10-30, 7:22 pm |
| Platform: HPUX 11.23 on Itanium
Excuse me if this is a newbie question, but I'm out of my area on
this. I'm really an Oracle DBA.
Monday morning I found that my Sunday morning backups as well as my
Oracle Enterprise Manager (db management tool) agent were broken.
Quickly found that it was due to a mis-match between timezone specs
between the agent and the OS -- a problem that was triggered by the
change of DST calendar and NOT going to DST this last weekend. While
working to resolve that (ended up applying a short-term work-around
provided by Oracle) I brought up WinSCP on my desktop to copy a file
between my desktop and my db server. It immediately caught my
attention that some log files on the server were showing timestamps an
hour into the future. Just to confirm, I created a new file on the
HPUX box (touch myfile) then compared the timestamp shown by 'ls -l'
with that shown in the gui on WinSCP. Sure enough, the times were
off. On the server itself 'ls -l' showed the files timestamp at
13:47, but WinSCP shows the same file at 2:47pm (14:47). The timestamp
on the files,as well as the values returned by 'date' are correct.
Looks to me like perhaps a timezone or dst patch has yet to be applied
to the HPUX.
Comments?
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| Michael Tosch 2007-10-30, 7:22 pm |
| EdStevens wrote:
> Platform: HPUX 11.23 on Itanium
>
> Excuse me if this is a newbie question, but I'm out of my area on
> this. I'm really an Oracle DBA.
>
> Monday morning I found that my Sunday morning backups as well as my
> Oracle Enterprise Manager (db management tool) agent were broken.
> Quickly found that it was due to a mis-match between timezone specs
> between the agent and the OS -- a problem that was triggered by the
> change of DST calendar and NOT going to DST this last weekend. While
> working to resolve that (ended up applying a short-term work-around
> provided by Oracle) I brought up WinSCP on my desktop to copy a file
> between my desktop and my db server. It immediately caught my
> attention that some log files on the server were showing timestamps an
> hour into the future. Just to confirm, I created a new file on the
> HPUX box (touch myfile) then compared the timestamp shown by 'ls -l'
> with that shown in the gui on WinSCP. Sure enough, the times were
> off. On the server itself 'ls -l' showed the files timestamp at
> 13:47, but WinSCP shows the same file at 2:47pm (14:47). The timestamp
> on the files,as well as the values returned by 'date' are correct.
>
> Looks to me like perhaps a timezone or dst patch has yet to be applied
> to the HPUX.
>
> Comments?
>
1. Show the system time:
date
2. Show the system time zone:
echo $TZ
cat /etc/TIMEZONE
Perhaps the system time zone is wrongly set.
--
Michael Tosch @ hp : com
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| EdStevens 2007-10-31, 1:28 pm |
| On Oct 30, 4:22 pm, Michael Tosch <eed...@NO.eed.SPAM.ericsson.PLS.se>
wrote:
> EdStevens wrote:
>
>
>
>
>
> 1. Show the system time:
>
> date
>
> 2. Show the system time zone:
>
> echo $TZ
> cat /etc/TIMEZONE
>
> Perhaps the system time zone is wrongly set.
>
> --
> Michael Tosch @ hp : com
$> date
Wed Oct 31 08:28:53 CDT 2007
$> echo $TZ
CST6CDT
$> cat /etc/TIMEZONE
TZ=CST6CDT
export TZ
btw, we are in the Nashville, TN area. US Central time zone.
| |
| Michael Tosch 2007-10-31, 7:22 pm |
| EdStevens wrote:
> On Oct 30, 4:22 pm, Michael Tosch <eed...@NO.eed.SPAM.ericsson.PLS.se>
> wrote:
>
> $> date
> Wed Oct 31 08:28:53 CDT 2007
>
> $> echo $TZ
> CST6CDT
>
> $> cat /etc/TIMEZONE
> TZ=CST6CDT
> export TZ
>
>
> btw, we are in the Nashville, TN area. US Central time zone.
>
Yes, probably the DST patch is missing on your HP-UX system.
Get an account on
https://www4.itrc.hp.com/service/patch/mainPage.do
Search for patch PHCO_36098
and download it.
Run
sh PHCO_36098
It extracts PHCO_36098.depot (kind of a tar file)
Install it your system with the command
swinstall -s /path/to/PHCO_36098.depot \*
I think your system must be rebooted, so the change
has an affect on all running processes.
--
Michael Tosch @ hp : com
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