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
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
On June 21th 2020 SUSE announced SLES15 SP2 the second service pack SLES 15. With it’s kernel upgrade it contains many new features for System Z:
On April 14th IBM announced the new z15 T02 the successor for the z14 ZR1. At the same time also the LinuxONE III LT2 the successor for the LinuxONE Rockhopper II was announced. Both machines are based on … Read the rest
On April 21st, 2020 Red Hat announced RHEL 8.2 the second service pack for their new enterprise version. With the transition of RHEL 7.8 to Maintenance Mode 2 this is now the premier enterprise distribution.
The kernel level for 8.2 … Read the rest
On March 31th, 2020 Red Hat announced RHEL 7.8 the next regular update to their flag ship operating system. This the successor of RHEL 7.7. With this release in August RHEL 7 transitions to Maintenance Support 2 phase. So … Read the rest
With the z15 the CPU in System Z has gotten the ability to compress data into the zlib format really fast. The feature is officially called Integrated Accelerator for zEnterprise Data Compression (zEDC). This is know as zlib acceleration. Of … Read the rest
On December 9th 2019, SUSE announced SLES12 SP5 the follow up service pack after SLES 12 SP4. This release is the last service pack of SLES12. The new features for System Z include:
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