After installation, if you must modify the software installed in your Grid home, then you must first stop the Oracle Clusterware stack.
Caution:
To put the changes you make to the Oracle Grid Infrastructure home into effect, you must shut down all executable files that run in the Grid home directory and then restart them. In addition, shut down any applications that use Oracle shared libraries or DLL files in the Grid home.Note:
Do not delete directories in the Grid home. For example, do not delete the directoryGrid_home/Opatch
. If you delete the directory, then the Grid infrastructure installation owner cannot use Opatch to patch the Grid home, and Opatch displays the error message "checkdir error: cannot create Grid_home/OPatch".