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IDS Forum

AW: Ontape -a

Posted By: Muthana.AL-Temimi@tu-harburg.hamburg.de
Date: Friday, 26 November 2010, at 7:42 a.m.

In Response To: Re: Ontape -a (Martin Fuerderer)

Hi Martin,

What shall I consider if I change ontape -c instead of ontape -a in alarm_log.sh?

Regards,
Muthana

-----Ursprüngliche Nachricht-----
Von: ids-bounces@iiug.org [mailto:ids-bounces@iiug.org] Im Auftrag von Martin Fuerderer
Gesendet: Freitag, 26. November 2010 13:20
An: ids@iiug.org
Betreff: Re: Ontape -a [22059]

Hi Fernando,

I understood that he's not waiting for logical logs to become full.

I think this is what happens:

When one logical log becomes full - as notified by the alarm program -
he has the alarm_log.sh to start "ontape -a". His problem is, that this
ontape execution does not only backup the one log (that just
became full), but after doing this it "hangs around". It does this
probably because it should be asking whether "to backup the
current log". And as probably there's no answer (i.e. no
answer provided by the shell script that started the
"ontape -a") ... the ontape keeps waiting ...

This is (more or less) the old problem of ontape being an
interactive program (requesting user input on standard-in),
but being run by some shell script that doesn't provide the
needed answers to the questions asked by ontape ...

While it is possible to script some input to some expected
questions from ontape ... there's always the problem that
ontape will be asking more or different things when
something is not going on as normal (e.g. tape full and
tape change requested, tape device not working, file
system full, etc.) ... and the needed answers for these
questions have not been scripted ... :-(

I don't recall now, whether there was an option for ontape
to only do the one action (backing up a log file in this
case) and exiting immediately without requiring any user
input to some question/prompt. I think there might be
some possibility when doing backup to a directory (in
some of the newer versions of Informix). This may be
worth looking into here. Other than that I guess the
best thing is to see if anyone (like Art Kagel, etc.) has
already done some intense shell programming to
check for all possible prompts of ontape and
feed appropriate answers for all the possible
situations ...

Regards, Martin
--
Martin Fuerderer
IBM Informix Development Munich, Germany
Information Management

IBM Deutschland Research & Development GmbH
Chairman of the Supervisory Board: Martin Jetter
Board of Management: Dirk Wittkopp
Corporate Seat: Boeblingen, Germany
Reg.-Gericht: Amtsgericht Stuttgart, HRB 243294

ids-bounces@iiug.org wrote on 11/26/2010 12:27:04 PM:
> On Fri, Nov 26, 2010 at 11:21 AM, Muthana.AL-.... <
> Muthana.AL-Temimi@tu-harburg.hamburg.de> wrote:
>
> > Dear Group IDS,
> >
> > i have the following problem:
> >
> > I have HDR Solution and in the Primary server when the one logical
logs
> > full, then will start ontape -a through alarm_log.sh file and the full

> > logical log will be backup.
> >
> > But the job ontape -a still in the background and when the next one
full
> > and the third ... and still the ontape -a as job in background but
> > without effect. It means not working.
> >
> > Then I kill the job and start it manually and it work for the 2nd and
> > 3rd logical logs then the background job will disappear till the next
> > full logical logs.
> >
> > But this problem come again to me.
> >
> > Any help will be welcome
> >
> > Regards,
> >
> > Muthana AL-Temimi
> >
> > M.Sc. Informations- und Kommunikations-Systeme
> >
> > Technische Universitaet Hamburg Harburg
> >
> > -Rechenzentrum-
> >
> > Schwarzenbergstr. 95 (E)
> >
> > D-21073 Hamburg
> >
> > Tel.: +49.40.42878.2338
> >
> > Fax.: +49.40.42793.5160
> >
> > E-Mail: m.al@tu-harburg.de <mailto:m.al@tu-harburg.de>
> >
> > http://www.tu-harburg.de/rzt <http://www.tu-harburg.de/rzt>
> >
> >
> >
> >
>

*******************************************************************************

> > Forum Note: Use "Reply" to post a response in the discussion forum.
> >
> >
> You should not be waiting until the logical logs are full.
> You should be backing up them continuosly with ontape -c
>
> Note that if you wiat for log full, your database will stop... And
besides
> that, if your server crashes and you need to restore you won't be able
to
> apply the logs up to the crash moment (since they're still in the
engine).
>
> Regards.
>
> --
> Fernando Nunes
> Portugal
>
> http://informix-technology.blogspot.com
> My email works... but I don't check it frequently...
>
> --0015174beace1a03500495f3006b
>
>
>

*******************************************************************************

> Forum Note: Use "Reply" to post a response in the discussion forum.

*******************************************************************************
Forum Note: Use "Reply" to post a response in the discussion forum.

Messages In This Thread

  • Ontape -a
    Muthana.AL-Temimi@tu-harburg.hamburg.de -- Friday, 26 November 2010, at 6:21 a.m.
    • Re: Ontape -a
      Fernando Nunes -- Friday, 26 November 2010, at 6:27 a.m.
      • Re: Ontape -a
        Martin Fuerderer -- Friday, 26 November 2010, at 7:20 a.m.
        • AW: Ontape -a
          Muthana.AL-Temimi@tu-harburg.hamburg.de -- Friday, 26 November 2010, at 7:42 a.m.
          • Re: Ontape -a
            Art Kagel -- Friday, 26 November 2010, at 9:06 a.m.
            • RE: Ontape -a
              Noel Murphy -- Friday, 26 November 2010, at 12:30 p.m.
        • AW: Ontape -a
          Muthana.AL-Temimi@tu-harburg.hamburg.de -- Friday, 26 November 2010, at 8:09 a.m.
      • Re: Ontape -a
        Art Kagel -- Friday, 26 November 2010, at 8:59 a.m.

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