Follow this procedure to migrate Oracle ASM disk groups to Oracle ASMFD in an Oracle Grid Infrastructure for a standalone server environment.

1. As the grid user, list the existing disk groups.

   $ $ORACLE_HOME/bin/asmcmd lsdg

2. List the disks associated with each disk group.

   $ $ORACLE_HOME/bin/asmcmd lsdsk -G diskgroup

3. Check if Oracle ASM is active.

   $ $ORACLE_HOME/bin/srvctl status asm

4. Stop all the databases and dismount all disk groups.

   $ $ORACLE_HOME/bin/srvctl stop database -db db_unique_name
   $ /$ORACLE_HOME/bin/srvctl stop diskgroup -diskgroup diskgroup_name -f

5. Label all existing disks in the disk group.

   $ $ORACLE_HOME/bin/asmcmd afd_label label disk_path --migrate
   

6. Scan the disks.

   $ $ORACLE_HOME/bin/asmcmd afd_scan

7. Start the database and mount the disk group.

   $ $ORACLE_HOME/bin/srvctl start diskgroup -diskgroup diskgroup_name