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Saturday 10 July 2021

Configure AFD (ASM Filter Driver) and Prepare Disks for ASM


Configure AFD (ASM Filter Driver) and Prepare Disks for ASM

 How to Install and Configure ASM Filter Driver from Beginning Itself

Step1:  Install Oracle GI binaries

Install GI ( Grid Infrastructure Software) and Apply Latest PSU.  Follow the Steps from my post "How Install and Configure Oracle ASM"


Step2: Stop has

#crsctl stop has
CRS-2791: Starting shutdown of Oracle High Availability Services-managed resources on 'wdtest05'
CRS-2673: Attempting to stop 'ora.LISTENER.lsnr' on 'wdtest05'
CRS-2677: Stop of 'ora.LISTENER.lsnr' on 'wdtest05' succeeded
CRS-2673: Attempting to stop 'ora.evmd' on 'wdtest05'
CRS-2677: Stop of 'ora.evmd' on 'wdtest05' succeeded
CRS-2793: Shutdown of Oracle High Availability Services-managed resources on 'wdtest05' has completed
CRS-4133: Oracle High Availability Services has been stopped.


Step3: Configure AFD (ASM Filter Driver)

# asmcmd afd_configure
AFD-627: AFD distribution files found.
AFD-634: Removing previous AFD installation.
AFD-635: Previous AFD components successfully removed.
AFD-636: Installing requested AFD software.
AFD-637: Loading installed AFD drivers.
AFD-9321: Creating udev for AFD.
AFD-9323: Creating module dependencies - this may take some time.
AFD-9154: Loading 'oracleafd.ko' driver.
AFD-649: Verifying AFD devices.
AFD-9156: Detecting control device '/dev/oracleafd/admin'.
AFD-638: AFD installation correctness verified.
Modifying resource dependencies - this may take some time.



Step4: Configure Disk Discovery for AFD

Modify the below mentioned files as shown
# cat /etc/afd.conf
afd_diskstring='/dev/xvd*'
afd_filtering=enable

#cat /etc/oracleafd.conf
afd_diskstring='/dev/xvd*'
afd_filtering=enable

At this point AFD is configured you can verify the status as below
# asmcmd afd_state
ASMCMD-9526: The AFD state is 'LOADED' and filtering is 'ENABLED' on host 'wdtest05'
I would recommend to restart acfs before you proceed
#acfsload stop
#acfsload start

#lsmod | grep acfs


Step5: Label the Disks using AFD to be used by ASM

#asmcmd afd_label DATA01 /dev/xvdg
#asmcmd afd_label FRA01 /dev/xvdh
#asmcmd afd_label REDO01 /dev/xvdi


#asmcmd afd_lsdsk





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