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EHPI update, reinstall dialog instances

Former Member
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The EHPI installation book as well as the central note 1302772 say that if you are using EHPI and you have dialog instances that you need to De-install and Re-install the dialog instance if you have dual stack or java only stack.

Can anyone explain WHY this has to be done, This seems to be a lot of unneccessary work. In our enviironment the kernel directories are shared per the SAP design. The dialog instances are shutdown during down time.

I just got done doing and update on one of my sandbox systems and afterwards I started up my dialog instance(without reinstalling it) with no problems.

I did searches about tlhis but found no similar question

I am updating from NW 7.0 sp18 to Nw EHP1 sp8.

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Answers (4)

Answers (4)

Former Member
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Closing as answered

Former Member
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Hi Harold,

This forum is highly informative. Did SAP actually update that no re-install is necessary?

We are done upgrading our SAP ERP 6.0 (ABAP only) system to EHP5 from EHP3.

Dont we need to upgrade our instance?

The SAP guide says just re-install with same SID and same instance number.

It seems very surprising that guide is so largely flawed.

Secondly there is a catch that we are on oracle 11.2.0.2

The installation master is asking for 10g Client.

it will be helpful if you can clarify a bit as what SAP replied precisely.

Thanks and Regards,

Karan Shah

Former Member
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I had also opened a message and this SAP''s response

When the kernel directory is shared with the dialog instances ,

the sapcpe executable automatically copies the new kernel to

the dialog instances also. In this case there is no necessity of

installing new dialog instances.

If the DIR_CT_RUN directory is not shared, then it is mandatory

to install new dialog instances

Former Member
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Hi,

you have dialog instances that you need to De-install and Re-install the dialog instance if you have dual stack or java only stack.

I think this is not needed. I have done EHP1, EHP2, EHP5 upgrades but this was not a pre-requisite.

Hope this helps.

Thanks,

Sushil

sunny_pahuja2
Active Contributor
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Hi,

Its not required if you have common kernel directory.

Thanks

Sunny