The new IBM z15 / LinuxONE Emperor III introduced the possibility for an operating system to boot in a secure fashion. The chain of trust is verified from the hardware throughout the whole firmware up into the operating system. Right … Read the rest
On November 6th, 2019 Red Hat announced RHEL 8.1 the first service pack for their new enterprise version.
The kernel level for 8.1 is kernel-4.18.0-147.el8. This is a bug fix and feature release. On System Z RHEL 8.1 is better … Read the rest
Today September 12th 2019 IBM announced the new generation of mainframe called IBM z15. Planned availability date is September 23, 2019. And of course they also announced LinuxONE III. Like the z14 ZR1 this machine now also fits into a … Read the rest
On August 6th, 2019 Red Hat announced RHEL 7.7 the next regular update to their flag ship operating system. This the successor of RHEL 7.6.
The kernel level for 7.7 is kernel-3.10.0-1062.el7. Please note that the kernel-alt and the … Read the rest
System Z is designed to efficiently run multiple different workloads at the same time. From Linux you can with proper authorization monitor the other LPARs. The tool for this is hyptop.
Hyptop is documented in the man page (“man … Read the rest
On June 24th 2019, one year after the first release, SUSE announced SLES15 SP1 the first service pack for SLES 15. This release adds many new features for System Z and also for using SLES15 SP1 as a KVM … Read the rest
One of the FAQs that I get is: where can I get access to Linux on Z? Depending on what you want to do, there are several options:
Oracle 19c (19.3) is now available for Linux on Z (pdf). This is the next long term release of the Oracle database (DB). If you have an Oracle DB license covering this, you can … Read the rest
On October 30th, 2018 Red Hat announced RHEL 7.6 the next regular update to their flag ship operating system. This the successor for RHEL 7.5.
The kernel level for 7.6 is kernel-3.10.0-957.el7. Furthermore the kernel-alt introduced with RHEL 7.5, … Read the rest
PostgreSQL is one of the popular databases on Linux on Z. It’s available in all major distributions. As with every database tuning is important. Marc Beyerle, a colleague of mine, wrote an in depth article about his tuning experiences: “… Read the rest