by Brian Fitzgerald

Introduction

Oracle has desupported ASM filter driver (AFD) 2806979.1. DBAs looking to support RAC need to look elsewhere for ASM management software. The updated asmlib release fills the bill and is available on Red Hat Linux, but finding the downloads is not straightforward.

Download

On RHEL 9, you will need these downloads:

oracleasm-support

https://yum.oracle.com/repo/OracleLinux/OL9/addons/x86_64/

oracleasm-support-3.1.0-10.el9.x86_64.rpm

oracleasmlib

https://www.oracle.com/linux/downloads/linux-asmlib-v9-downloads.html

oracleasmlib-3.1.0-6.el9.x86_64.rpm

Uninstall AFD

# /u01/app/oracle_grid/product/1930/grid/bin/afdroot uninstall

Install and start

# uname -r
5.14.0-427.42.1.el9_4.x86_64
# rpm -ihv oracleasm-support-3.1.0-10.el9.x86_64.rpm
# rpm -ihv oracleasmlib-3.1.0-6.el9.x86_64.rpm
# systemctl start oracleasm.service
# oracleasm scandisks
# oracleasm listdisks
ORA_ASM_GRID1_01
ORA_ASM_GRID1_02
ORA_ASM_GRID1_03

Conclusion

asmlib is a convenient drop-in replacement for afd. asmlib protects your ASM disks from illegal writers, just as AFD did. The downloads can be found off the beaten track.