NUMA is disabled in Oracle Linux

Question

Hello
referring to the latest Oracle Linux 6
https://blogs.oracle.com/linux/entry/oracle_rdbms_server_11gr2_pre
This package (as also the previous oracle-validated rpm) sets the numa=off in kernel boot (even when using Oracle UEK, not just Red Hat kernel)
Assuming the latest Oracle RDBMS, i.e. 11g R2, 11.2.0.3 on X86_64 bit-bit Oracle Linux 5.x and 6.x
Can anyone point me to the position re Oracle 11g R2 support of NUMA on Intel/AMD based servers ?
Many thanks.

Answer 1

yurib wrote:
Hello
referring to the latest Oracle Linux 6
https://blogs.oracle.com/linux/entry/oracle_rdbms_server_11gr2_pre
This package (as also the previous oracle-validated rpm) sets the numa=off in kernel boot (even when using Oracle UEK, not just Red Hat kernel)
Assuming the latest Oracle RDBMS, i.e. 11g R2, 11.2.0.3 on X86_64 bit-bit Oracle Linux 5.x and 6.x
Can anyone point me to the position re Oracle 11g R2 support of NUMA on Intel/AMD based servers ?
Many thanks.NUMA is by default is disable from 11gR2 database versions. I.e enableNUMA_support=FALSE is by default from 11.2 database even if NUMA is configured from hardware/os level. Oracle recommends to do complete test n planning before going in production with NUMA enabled at database and os level.
If you still want to enable NUMA in your database from 11.2, follow below note. For check NUMA support at hardware and OS level you need to check with your vendor.
Enable Oracle NUMA support with Oracle Server Version 11.2.0.1 [ID 864633.1]
Also see
Oracle NUMA Usage Recommendation [ID 759565.1]