OL

Oracle Linux (OL), Red Hat Enterprise Linux (RHEL) and CentOS

Posted on July 11, 2023 by Mike.Dietrich Linux Operating System 9

Oracle isn’t always evil. And I personally never understood why not everyb0dy is on Oracle Linux (OL) already. It’s free, it gets extremely well maintained. And some issues my customers saw with Red Hat Enterprise Linux (RHEL) were fixed with OL literally more than a year before RHEL did. No blame to anybody – but that is my experience when customers tell me about issues over the past two years. But what is the future of Oracle Linux (OL), Red Hat Enterprise Linux (RHEL) and CentOS? And why am I writing this blog post?

Oracle Linux (OL), Red Hat Enterprise Linux (RHEL) and CentOS

Photo by Brigitta Schneiter on

Disable Transparent Hugepages on SLES11, RHEL6, RHEL7, OL6, OL7 and UEK2 Kernels

This blog post is not related to database upgrades and migrations. But still I think it is very useful for many customers operating on modern Linux systems.

Recommendation

Support just published an ALERT strongly recommending to disable Transparent Hugepages on Linux systems. And the below information does not apply to RAC systems only but also to single instance environments.

Which Linux Distrubutions/Kernels are affected?

SLES11
RHEL6 and RHEL7
OL6 and OL7
UEK2 Kernels

What are the Issues?

I’m quoting MOS Note: 1557478.1 (ALERT: Disable Transparent HugePages on SLES11, RHEL6, RHEL7, OL6, OL7 and UEK2 Kernels):

Because Transparent HugePages are

OEL6 and RHEL6 certification

Posted on April 3, 2012 by Mike.Dietrich Operating System 1

Well, it took some time until Oracle Database 11.2.0.3 got finally certified on Oracle Unbreakable Linux 6 (OEL6) and RHEL6 (see the official announcement here). One really interesting change is that effective immediately, Oracle will provide its Red Hat compatible Linux binaries, updates and errata for free http://public-yum.oracle.com