Hello. Having working 10gR2 2-node cluster. Want to upgrade to version 11.2 but for some time running both versions. Probably it is possible, Oracle states that "if you run Oracle RAC 10g and 11g in the same cluster, you must run Clusterware 11g (only)". So, I must first upgrade clusterware, is it possible ?
Yes, It's supported and you first must upgrade Clusteware before upgrade Database RAC.
You can only have one installation of Oracle Clusterware running in a cluster, and it must be installed into its own home (
Grid_home). The release of Oracle Clusterware that you use must be equal to or higher than the Oracle ASM and Oracle RAC versions that are running in the cluster. You cannot install a version of Oracle RAC that was released after the version of Oracle Clusterware that you run on the cluster
Thank you for reply. I checked docs and began installation, but stuck at the early beginning: 22.214.171.124 Grid Installer during Prerequisite Checks says 2 times about "Udev attributes check":
"Error: PRKC-1002 All the submitted commands did not execute succesfully..
Details: PRVF-5187 Retrieval of Udev information failed on all nodes ..."
The second check note has absolutely the same error.
Couldn't find anything related to this... Does anyone knows, where could be a problem ?