I recently added two new nodes to an existing 2-node RAC cluster, bringing the total nodes to 4.
After the installer completed, with more than a few errors along the way I might add, I had ASM running on just 3 nodes….
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Oracle 11gR2 RAC Install – cleaning up a failed install on Linux
Despite all the updates to the Oracle RAC installer, it is still an extremely brittle install process that frequently goes pear shaped.
A common problem is pilot-error, and a regular mistake is running the root.sh script on secondary nodes before it has fully completed on the primary node.
Oracle now provides the rootcrs.pl script in the Grid home crs/install directory.
To execute the script, connect to your first node and execute as follows:
the gruffdba 