Migrating from Oracle ASM Filter Driver to Oracle ASMLib

Oracle ASM filtering is disabled starting with Linux kernel version 5.14. To continue using filtering, migrate from Oracle ASM Filter Driver (Oracle ASMFD) to Oracle ASMLib 3.1 in rolling mode.

Prerequisites

• If Oracle ASMFD is installed and configured for an existing Oracle ASM installation, then you must explicitly deconfigure Oracle ASMFD filtering before installing and configuring Oracle ASMLib.
• Use this procedure on Oracle Linux 8 or later servers running UEK6 (kernel version 5.4.17-2136.342.1 or later).
• If the Oracle ASM disk group attribute compatible.rdbms is lower than 12.2.0.1.0, then set compatible.rdbms to 12.2.0.1.0 or higher (preferred), or apply one-off patch for bug 39030808.

1. Confirm that Oracle ASMFD is configured and running.

   # asmcmd lsdsk
   Path
   AFD:DATA1
   AFD:DATA2

   The AFD prefix in the results indicates that the disks are configured using Oracle ASMFD.
2. Apply the one-off patches for the following bugs to the specified Oracle homes:
   1. 37347369 (Oracle Grid Infrastructure home)
   2. 37405185 (Oracle Grid Infrastructure home)
   3. 37230154 (Oracle Grid Infrastructure home and Oracle Database home)
   4. 39030808 (Oracle Grid Infrastructure home; required only if compatible.rdbms is lower than 12.2.0.1.0 and you cannot set it to a higher release)
3. Shut down the Oracle Clusterware stack on the local node.

   # crsctl stop crs

4. Stop Oracle ACFS kernel modules.

   # $ORACLE_HOME/bin/acfsload stop

5. Deconfigure Oracle ASMFD filtering.

   # $ORACLE_HOME/bin/asmcmd afd_deconfigure

6. Install Oracle ASMLib v3 by following the steps documented in Installing and Configuring Oracle ASMLib v3.
7. Run the Oracle ASM initialization script and configure Oracle ASMLib on the local node.

   # /usr/sbin/oracleasm init
   # /usr/sbin/oracleasm configure -i

8. Start the Oracle ASMLib service.

   # systemctl enable --now oracleasm

9. Scan for Oracle ASMLib-labeled disks on the local node.

   # /usr/sbin/oracleasm scandisks

10. List Oracle ASMLib disks on the local node.

    # /usr/sbin/oracleasm listdisks

    Note:

    The disk list must match the disk list from Step 1.
11. Verify the status of the Oracle ASMLib disks on the local node.

    # /usr/sbin/oracleasm status

12. Start Oracle ACFS kernel modules.

    # $ORACLE_HOME/bin/acfsload start

    Note:

    Run this step even if you do not use Oracle ACFS.
13. Start the Oracle Clusterware stack on the local node.

    # crsctl start crs

14. Confirm that Oracle ASMLib is configured and running.

    # asmcmd lsdsk
    Path
    ORCL:DATA1
    ORCL:DATA2

    The ORCL prefix in the results indicates that the disks are configured using Oracle ASMLib.

15. Repeat steps 1 through 14 on each remaining cluster node, one node at a time.