Configuring Storage Device Path Persistence Using Oracle ASMFD

Oracle ASM Filter Driver (Oracle ASMFD) maintains storage file path persistence and helps to protect files from accidental overwrites.

Note:

Oracle ASM Filter Driver (ASMFD) is deprecated on both Linux and Oracle Solaris beginning with Oracle Database 19c. It will be desupported in a future release.

On Linux systems running kernel 5.14 or higher (including Oracle Linux, RedHat Enterprise Linux, and SUSE Linux Enterprise Server), ASMFD filtering is already disabled and will not be supported going forward. Oracle recommends moving to ASMlib v3 for those environments, as it provides equivalent functionality. For details, see My Oracle Support Note Document 2806979.1. Migration steps are available. On Oracle Solaris, ASMFD is deprecated, but remains fully supported. No immediate action is required until a formal desupport notice is issued.

  • About Oracle ASM with Oracle ASM Filter Driver
    During Oracle Grid Infrastructure installation, you can choose to install and configure Oracle Automatic Storage Management Filter Driver (Oracle ASMFD). Oracle ASMFD helps prevent corruption in Oracle ASM disks and files within the disk group.
  • Configuring Oracle ASM Filter Driver
    You can configure Oracle ASM Filter Driver (Oracle ASMFD) for device persistence during the installation of Oracle Grid Infrastructure or after Oracle Grid Infrastructure has been installed.
  • Determining If Oracle ASM Filter Driver Is Configured
    The value of the AFD_STATE parameter of SYS_ASMFD_PROPERTIES specifies whether Oracle ASMFD is configured for the Oracle ASM instance.

Related Topics

Parent topic: Configuring Storage for Oracle Grid Infrastructure for a Standalone Server