Changing the Oracle Grid Infrastructure Base Path

Use this procedure to change the Oracle Grid Infrastructure base directory after installation.

This procedure applies to Oracle Grid Infrastructure 19c Release Update (19.21) and later releases.

Note:

Before changing the Grid base, shut down all executables that run in the Grid base directory. Also, shut down any applications linked to Oracle shared libraries.

1. As the root user, create a new Oracle base directory, then change the owner and group for the directory and files in the new Grid base.

   # mkdir -p /u02/app/grid
   # chown -R grid:oinstall /u02/app/grid

2. Stop the Oracle Clusterware stack and TFA on all cluster nodes.

   # $ORACLE_HOME/bin/crsctl stop crs
   # tfactl stop

3. Copy the Oracle Grid Infrastructure files from the old Grid base location to the new Grid base location, for example, from /u01/app/grid to /u02/app/grid.

   # cp -pR /u01/app/grid /u02/app/grid

4. Create a backup of the old Oracle base to ensure new files are not created.

   # mv /u01/app/grid /u01/app/grid.old

5. Edit the Grid_home/crs/install/crsconfig_params file using a text editor and update the ORACLE_BASE parameter to the new Oracle base on all cluster nodes.

   ORACLE_BASE=/u02/app/grid

6. Edit the Grid_home/install/orabasetab file using a text editor and update the ORACLE_BASE parameter to the new Oracle base on all cluster nodes.

   ORACLE_BASE=/u01/app/grid:/u02/app/grid:OraGI23Home1:N:

7. Update the new Oracle base location in the Grid_home/inventory/ContentsXML/oraclehomeproperties.xml file and the Grid_home/network/admin/sqlnet.ora file.
8. Edit the /etc/oracle/olr.loc file using a text editor and update the olrconfig_loc parameter with the new ORACLE_BASE path.

   olrconfig_loc=/u02/app/grid/crsdata/$HOSTNAME/olr/$HOSTNAME_23.olr

9. Restore Oracle Grid Infrastructure home file permissions on all cluster nodes.

   # /u01/app/23.0.0/grid/crs/install/rootcrs.sh -init

10. Move the AHF data directory to the new Oracle base directory.

    # ahfctl movedatadir /u02/app/grid

11. Start the Oracle Clusterware stack on all cluster nodes.

    # $ORACLE_HOME/bin/crsctl start crs