Updating the Oracle ASM Filter Driver AFD_DISKSTRING Parameter

The AFD_DISKSTRING parameter specifies the Oracle ASMFD disk discovery string that is used to identify the disks to be managed by Oracle ASMFD.

You can set and display the AFD_DISKSTRING parameter with the ASMCMD afd_dsset and afd_dgset commands. For example:

$ $ORACLE_HOME/bin/asmcmd afd_dsset '/dev/rdsk/mydisks/*'

$ $ORACLE_HOME/bin/asmcmd afd_dsget
AFD discovery string: /dev/rdsk/mydisks/*

For information about ASMCMD commands to display and set the Oracle ASMFD disk discovery string, refer to "afd_dsget" and "afd_dsset".

You can also set the AFD_DISKSTRING with the ALTER SYSTEM SQL statement. A label is created in the disk header of those disks identified by the Oracle ASMFD disk discovery string.

SQL> ALTER SYSTEM AFD_DISKSTRING SET '/dev/disk0','/dev/disk1','/devices/dsk/*';
System altered.

You can retrieve the value of AFD_DISKSTRING parameter with the following query.