Database Install/Upgrade/Opatch (MOSC)

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RAC upgrade 11.1.0.7 to 11.2.0.2

edited Oct 9, 2013 1:44AM in Database Install/Upgrade/Opatch (MOSC) 4 commentsAnswered
We have a 2 node cluster 11.1.0.7 on AIX6.1 with ASM, and would like to upgrade to oracle 11.2.0.2.

For holistic upgrade to run smoothly we would like to install a fresh 11.2.0.2, while temporarily keeping the 11.1.0.7 as a fail-over should anything go wrong.
Unfortunately we do not have the physical resources to install the new cluster oracle 11.2.0.2 on new AIX 6.1 LPARs. Hence we have to install the new 11.2.0.2 on same AIX servers hosting the 11.1.0.7.

Q1. Can anyone suggest appropriate documentation to follow?
Q2. Is it possible to have two clusters running in parallel (one crs11.1.0.7 and the other grid 11.2.0.2)?
Q3. If not would 11.1.0.7 have issues running on grid 11.2.0.2?

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