Migration suggestion if multiple Exadata Compute Node Oracle Homes are using mixed lower versions than the shared Grid Oracle Home

Last updated on JANUARY 23, 2013

Applies to:

Symptoms

Exadata

You intend on using a single Exadata box with database for  TEST / UAT and a PROD database

This means that compute nodes may have more than one RDBMS version: Older for PROD and the newer targeted version for UAT/TEST

This may be testing for different patchset levels

   eg. 11.2.0.3.4 vs. 11.2.0.3.8

or

release levels 

   e.g. 11.2.0.2 vs. 11.2.0.3)

Your concern is : How do I test patching the GI / Infra at different levels if we are using a single-shared storage which means a single ASM and GI version

Changes

In this case the user accidentally created multiple RDBMS patched versions at different patchset levels for multiple RDBMS homes while only using a single Grid Infrastructure for the storage cell nodes. 

That is: now we have several database levels but only one ASM / GI level shared by all of the RDBMS versions

Cause