Goal

  1. opatch lsinventory shows one node in uppercase (incorrect one) and the other node in lowercase (correct one) $ opatch lsinventory
Oracle Grid Infrastructure 11g                                       11.2.0.4.0
There are 1 product(s) installed in this Oracle Home.
There are no Interim patches installed in this Oracle Home.

Rac system comprising of multiple nodes
Local node = rac1
Remote node = RAC2                   <<<<< Uppercase, incorrect one.
  1. From the central inventory, it shows an uppercase hostname. $ cat /u01/app/oraInventory/ContentsXML/inventory.xml
...

<HOME NAME="Ora11g_gridinfrahome1" LOC="/apps/oracle/product/11.2.0.4.GRD" TYPE="O" IDX="1" CRS="true">
  <NODE_LIST>
     <NODE NAME="rac1"/>
     <NODE NAME="RAC2"/>                           <<<<< Upper-case, incorrect one.
  </NODE_LIST>
</HOME>

...

Solution

To change the hostname from uppercase to lowercase for a particular ORACLE_HOME:

  1. Run the following command on each node to rectify the uppercase host name in the inventory, as the software owner: 
    $ $ORACLE_HOME/oui/bin/runInstaller -updateNodeList ORACLE_HOME="/apps/oracle/product/11.2.0.4.GRD" "CLUSTER_NODES={rac1,rac2}"   -silent -local
  2. Verify the changes by repeating the command “opatch lsinventory” and “cat oraInventory/ContentsXML/inventory.xml”