11g Upgrade Best Practices

Hi,
We have a SAP ERP 6.0 EHP5 SPS6 with Oracle Database 10.2.0.2 running on AIX 5.3.
There is a DR Standby Database available for the Production setup.
We need to upgrade the DB to 11g R2.
Please let me know if the DB can be upgraded with minimal or no downtime.
Please share the best practices for upgrading the DB with minimal or no downtime.
Regards,
Narayan

There would be a minimal downtime. From 11202 onwards, the upgrades would be out-of-place so the downtime would be lesser compared to the previous releases. Please see the following link and download the slides for the upgrade and migration from the Upgrade group of Oracle Corp.
http://apex.oracle.com/pls/apex/f?p=202202:2:::::P2_SUCHWORT:migrate112
Aman....

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> Hi mates,
>
> I've a few questions regarding the upgrade to PI
> 7.0.
>
> If the upgrade process is done in phased manner i.e.
> DEV, QA, PRD in that order over a period of 3 weeks,
> How do we handle the transports from DEV->QA->PRD
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> internal representation of IR/ID content could be
> different in 3.0 & 7.0?
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>
> What are the upgrade best practices, phased manner or
> all at a time?
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