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IDS Forum

Re: ontape to disk

Posted By: Art Kagel
Date: Thursday, 9 July 2009, at 1:03 p.m.

In Response To: RE: ontape to disk (Schmitz, Rob B[EQ])

Certifying apps that are compatible with 7.31 & 9.40 on 11.50 is trivial.
If you are not making changes to take advantage of new features and are not
using any 9.40 datablades that are no longer supported, it's just the effort
to recompile everything and test the heck out of it all. You should see no
problems, we've ported several clients with commercial and home-grown apps
over the past couple of years without any issues at all, but as always
you've got to do the testing.

There are new features you may want to take advantage of, but that's a
separate issue to the upgrade itself.

Art

Art S. Kagel
Oninit (www.oninit.com)
IIUG Board of Directors (art@iiug.org)

Disclaimer: Please keep in mind that my own opinions are my own opinions and
do not reflect on my employer, Oninit, the IIUG, nor any other organization
with which I am associated either explicitly or implicitly. Neither do
those opinions reflect those of other individuals affiliated with any entity
with which I am affiliated nor those of the entities themselves.

On Thu, Jul 9, 2009 at 12:50 PM, Schmitz, Rob B[EQ] <
Rob.B.Schmitz@embarq.com> wrote:

> Thanks as always Art. Technically, we can upgrade. We've kept our
> maintenance
> up to date and we are currently paying for extended support for 9.40 (and
> we
> will also pay for it for 7.31 come September). Our issue has been in
> getting
> the applications to fund their effort to support the upgrade. We've just
> been
> purchased by another company, so that throws all sorts of tech buying
> decisions into a tizzy.
>
> Rob Schmitz
> Embarq Data Management
> rob.b.schmitz@embarq.com
> www.embarq.com
>
> -----Original Message-----
> From: ids-bounces@iiug.org [mailto:ids-bounces@iiug.org] On Behalf Of Art
> Kagel
> Sent: Thursday, July 09, 2009 11:26 AM
> To: ids@iiug.org
> Subject: Re: ontape to disk [16295]
>
> The 2GB limit went away in 9.40, not in 7.3x, you are correct. Tell you
> company that right now they can upgrade from 7.31 and/or 9.40 to
> 11.50.latest for just the cost of a support renewal. Considering that 9.40
> went out of support in April and 7.31 goes out of support in September, I'd
> say that's a good deal.
>
> As to why the archive is taking more output files on Saturday than other
> days, no clue.
>
> Art
>
> Art S. Kagel
> Oninit (www.oninit.com)
> IIUG Board of Directors (art@iiug.org)
>
> Disclaimer: Please keep in mind that my own opinions are my own opinions
> and
> do not reflect on my employer, Oninit, the IIUG, nor any other organization
> with which I am associated either explicitly or implicitly. Neither do
> those opinions reflect those of other individuals affiliated with any
> entity
> with which I am affiliated nor those of the entities themselves.
>
> On Thu, Jul 9, 2009 at 11:20 AM, Schmitz, Rob B[EQ] <
> Rob.B.Schmitz@embarq.com> wrote:
>
> > Good morning IDS folks!
> >
> > Sorry for the long post, but I have been wrestling with an ontape script
> > for
> > some time now and seem to have hit a brick wall. We currently have 156
> > instances on 78 servers. We have IDS 7.31 and 9.40 of various levels
> > running
> > on Sun, HP, and AIX. We have successfully used BMC's SQL-BackTrack as our
> > storage manager with onbar for many years. My company decided they no
> > longer
> > want to pay for the BMC license so I need another method for performing
> > database backups. I looked at ISM but it has too many limitations. Some
> of
> > our
> > instances are over 1 TB and we have many large chunks.
> >
> > I would love to be able to upgrade to 11.5, but again, the company does
> not
> > want to spend any resources to upgrade. Their stated goal is to quit
> using
> > Informix. Although that has been a goal for over ten years, we haven't
> > gotten
> > rid of one app yet. However, that means they won't spend anything to
> > upgrade.
> > By the way, my company is getting rid of SQL-BackTrack for Oracle as
> well,
> > but
> > rman seems to fill the void fairly well.
> >
> > I feel that my solution is to use ontape to disk. I searched the IIUG
> > repository and Google and the best I could find was a little script named
> > auto_ontape.ksh, written by Peter Tashkoff in 1998. Because the script
> was
> > originally written for a tape jukebox, I had to make a few modifications,
> > but
> > it has turned out to be very useful. This script watches the output from
> > ontape and when it sees the prompt to "Please mount tape " it jiggers the
> > link
> > specified in TAPEDEV and issues an echo to serve as the "return". Here is
> > what
> > that script looks like:
> >
> > ----------------------------------------------------------------------
> > echo
> >
> > sleep 20
> >
> > echo "\nThe first file in the series is ${ARCH_FILE}" >> $OUTFILE
> >
> > while [ `onstat -g ath | grep arcbackup | wc -l` -gt 0 ]
> > do
> >
> > sleep 10
> >
> > if [ `tail -1 $OUTFILE | awk '{print $2}'` = "mount" ]
> >
> > then
> >
> > let INCRMNT=INCRMNT+1
> >
> >
> >
>
> ARCH_FILE=${BACKUP_DIR}/${INFORMIXSERVER}_${TIMESTAMP}-${INCRMNT}.Level_${LVL}
> >
> > touch $ARCH_FILE
> >
> > chmod 777 $ARCH_FILE
> >
> > rm -f ${BASE_DIR}/${INST}/links/tape/tapedev
> >
> > ln -s ${ARCH_FILE} ${BASE_DIR}/${INST}/links/tape/tapedev
> >
> > echo
> >
> > echo "\nNew file is ${ARCH_FILE}" >> $OUTFILE
> >
> > fi
> > done
> >
> > echo "\nThe last file in the series is ${ARCH_FILE}" >> $OUTFILE
> > ----------------------------------------------------------------------
> >
> > Most of the environment variables, including the first ARCH_FILE, are set
> > in
> > the calling script. auto_ontape.ksh is called by:
> >
> > auto_ontape.ksh | ontape -s -L $LVL >> $OUTFILE 2>> $OUTFILE
> >
> > The calling script does some instance checking before calling
> > auto_ontape.ksh
> > and it performs some expiration functions afterwards.
> >
> > This works most of the time. It appears to always work for our 9.40
> > instances
> > because I set TAPESIZE to 0 and we don't have to worry about multiple
> > backup
> > files. The problem I have is that on the 7.31 instances on which I am
> > testing,
> > the output file gets so many "Please mount tape " messages so quickly
> that
> > the
> > output file fills the filesystem holding our message files (different
> from
> > the
> > filesystem holding the backup files). So far, it seems to only do this on
> > Saturday nights. There are no informix cron jobs that are different on
> > Saturday than any other night. I am also investigating if the tape ops
> > folks
> > are backing up the server at that time, but thus far I have not found any
> > reason for this to happen.
> >
> > I found a reference to this same issue in my Google searches, but I
> cannot
> > find any reason for it or how to avoid it. I also read that the 2 GB file
> > limit went away in 7.2, but that does not seem to be the case. (I believe
> > it
> > finally went away in 9.x.)
> >
> > Does anyone have any idea what causes this behavior? Alternatively, does
> > anyone know of a different script that could avoid this problem?
> >
> > Any help would be greatly appreciated.
> >
> > Thanks
> >
> > Rob Schmitz
> > Embarq Data Management
> > rob.b.schmitz@embarq.com
> > www.embarq.com
> >
> >
> >
> >
>
>
> *******************************************************************************
> > Forum Note: Use "Reply" to post a response in the discussion forum.
> >
> >
>
> --001636c5b526e4aeba046e484ee2
>
>
>
> *******************************************************************************
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>
>
>
> *******************************************************************************
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