Enabling and Disabling Direct NFS Client Control of NFS
Use these commands to enable or disable Direct NFS Client Oracle Disk Manager Control of NFS:
By default, Direct NFS Client is installed in a disabled state with single-instance Oracle Database installations. Before enabling Direct NFS, you must configure an oranfstab file. 
                  
Enabling Direct NFS Client Control of NFS
- 
                        
Change the directory to
$ORACLE_HOME/rdbms/lib. - 
                        
Enter the following command:
make -f ins_rdbms.mk dnfs_on 
Disabling Direct NFS Client Control of NFS
- 
                        
Log in as the Oracle software installation owner, and disable Direct NFS Client using the following commands:
cd $ORACLE_HOME/rdbms/lib make -f ins_rdbms.mk dnfs_off - 
                        
Remove the
oranfstabfile. 
Note:
If you remove an NFS path that an Oracle Database is using, then you must restart the database for the change to take effect.