10.1 and 10.2 Oracle Homes on the same clusterware
We are looking at moving our production databases to a three node database cluster running on a Sun Solaris platform. Out current production database is version 10.2.0.3 so we intend to install the database software up to patchset 10.2.0.3 and the Oracle Clusterware version 10.2.0.1.0.
At the same time we would also like to use this database cluster to run the asdb metadata repository for the Oracle Application Server 10.1.2 . It’s database is of version 10.1 so a 10.1 Oracle Home would need to be installed.
My first question is if it is possible to run a 10.1 and 10.2 home on the same cluster. I do realize that the clusterware will be 10.2.0.1.0 so the 10.1 database might not be able to run on it. If that is the case then I assume that we would also need to install clusterware 10.1.0.2.
This leads me to my second question which is: Is it possible to run two versions of clusterware on the same node? With different Oracle Homes running on top of it?
Any help would be appreciated.
Thanks,
Allan
Murali, Kevin, Thanks for the reply,
I will open a TAR to find out as to whether the Oracle Clusterware is downward compatible.
Have you seen RAC installations where databases instances are running on two or more Oracle Homes of different versions at the same time? For example a database cluster which is used for test/development would have an Oracle Home which is at version 10.2.0.2. In order to perform tests on a database upgraded to 10.2.0.3 an Oracle Home would be cloned and then have the 10.2.0.3 patchset applied. Then a copy of the production database would be upgraded to 10.2.0.3 using the 10.2.0.3 home. In the end on the same cluster there would be test databases running on both 10.2.0.2 and 10.2.0.3.
Thanks,
Allan
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