Migrating Oracle ASM Disk Groups with Oracle Cluster Registry or Voting Files

To migrate Oracle ASM disk groups with Oracle Cluster Registry (OCR) or voting files to Oracle ASM Filter Driver (Oracle ASMFD):

Log in as the root user and list the disk groups with OCR and voting files by running the following commands on one node:
```
# $ORACLE_HOME/bin/ocrcheck -config

# $ORACLE_HOME/bin/crsctl query css votedisk
```
As the Oracle Grid Infrastructure owner list the disks associated with the disk groups:
```
$ $ORACLE_HOME/bin/asmcmd lsdsk -G disk_group 
```
As root, stop the databases and Oracle Clusterware on all nodes:
```
# $ORACLE_HOME/bin/crsctl stop cluster -all
```
As the Oracle Grid Infrastructure owner label all existing disks in the disk group by running the following command for each disk on a Hub node:
```
$ $ORACLE_HOME/bin/asmcmd afd_label label disk_path --migrate
```
As the Oracle Grid Infrastructure owner rescan the disks on all Hub nodes by running the following command on all of the Hub nodes:
```
$ $ORACLE_HOME/bin/asmcmd afd_scan
```
As root, start the Oracle Clusterware stack on all nodes and mount the OCR and voting files disk groups and databases:
```
# $ORACLE_HOME/bin/crsctl start cluster -all
```