在安装grid 集群软件之前配置 (ASMFD): 可以在未安装grid 之前配置磁盘属性。
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Starting with Oracle Grid Infrastructure 12c Release 2 (12.2), Oracle ASM Filter Driver (Oracle ASMFD) cannot be installed and configured if Oracle ASMLIB has been installed on the system. If you want to install and configure Oracle ASMFD, you must first uninstall Oracle ASMLIB.
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Configure the shared disks for use with Oracle ASM Filter Driver:

Log in as the root user and set the environment variable $ORACLE_HOME to the location of the Grid home and the environment variable $ORACLE_BASE to a temporary location.
```
su root
set ORACLE_HOME=/u01/app/12.2.0/grid
set ORACLE_BASE=/tmp
```
You set $ORACLE_BASE to a temporary location to avoid creating diagnostic or trace files in the Grid home before the Oracle Grid Infrastructure installation.

Use Oracle ASM command line tool (ASMCMD) to provision the disk devices for use with Oracle ASM Filter Driver.

./u01/app/12.2.0/grid/bin/asmcmd afd_label DATA1 /dev/sdb --init
./u01/app/12.2.0/grid/bin/asmcmd afd_label DATA1 /dev/sdc --init
./u01/app/12.2.0/grid/bin/asmcmd afd_label DATA1 /dev/sdd --init

Verify the device has been marked for use with Oracle ASMFD.

./u01/app/12.2.0/grid/bin/asmcmd afd_lslbl /dev/sdb
./u01/app/12.2.0/grid/bin/asmcmd afd_lslbl /dev/sdc
./u01/app/12.2.0/grid/bin/asmcmd afd_lslbl /dev/sdd

Unset the ORACLE_BASE environment variable.

12.2 ASM Filter Driver