IBM z16 rack mount
Today April 4th 2023 IBM announced two new members of the IBM z16 family: the z16 single frame (z16-A02) and the z16 rack mount. The planned availability date is May 17, 2023. This is about a year after the z16… Read the rest
CPU Measurement Facility (CPUMF) for Linux on zSystems
The CPU Measurement Facility (CPUMF) provides hardware data to operating systems running in a LPAR on IBM zSystems. Besides trouble shooting it can also be used for long term analysis.
Preparation
Before you can collect data, you need to allow … Read the rest
IBM z16
Today April 5th 2022 IBM announced the new generation of mainframe called IBM z16. Planned availability date is May 31, 2022. The system is a significant step forward from z15 with AI and compliance components as well as a restructuring … Read the rest
Solution test publications overview
The Linux solution test team has created a good set of papers. This blog entry is the overview. For selected papers I’ll add and link more specialized posts. Latest papers will always been shown at the top.
… Read the rest
Red Hat Enterprise Linux (RHEL) 8.5 released
On November 9th 2021 Red Hat released RHEL 8.5 the fourth service pack for their leading Linux enterprise version. This is an intermediate release but it has a few interesting features, which may be the reason to upgrade to this … Read the rest
SUSE Linux Enterprise Server SLES 15 SP3 released
On June 21st 2021 SUSE announced SLES 15 SP3 the third service pack for SLES 15. This time no kernel upgrade but still quite a lot of new features for System Z after one year of development:
- Support for
Red Hat Enterprise Linux (RHEL) 8.4 released
On May 18th 2021 Red Hat released RHEL 8.4 the fourth service pack for their leading enterprise version. This is a long term support version and therefore a good starting point for new projects as well as an upgrade target … Read the rest
SMT: What utilization in real?
Simultaneous Multithreading (SMT) has been introduced to improve the throughput per core. In system Z if only one thread is running, the performance is very close to this of a single thread environment. In your data center you have most … Read the rest
Red Hat Enterprise Linux (RHEL) 8.3 released
On October 29th, 2020 Red Hat announced RHEL 8.3 the third service pack for their leading enterprise version. As soon as your middleware and application are available for RHEL 8 please plan for migration from older releases.
The kernel level … Read the rest
SUSE Linux Enterprise Server 15 SP2 (SLES15 SP2) released
On June 21st 2020 SUSE announced SLES15 SP2 the second service pack SLES 15. With it’s kernel upgrade it contains many new features for System Z:
- z15 support
- compiler (-march=z15), binutils, gdb support new instructions
- full zlib acceleration support