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.
Before you can collect data, you need to allow … Read the rest
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
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
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
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
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:
With the publication of the Spectre and Meltdown vulnerabilities last year the new class of hardware security threads has been discovered. Everyone needs to protect against them. For Linux and System Z the most important best practice is to stay … Read the rest
IBM has announced the new z14 ZR1 / LinuxONE Rockhopper II on April 10, 2018. The key new feature for me of this box is the form factor. Instead of the decades old 24″ rack a standard 19″ rack is … Read the rest
You might have heard IBM talking about “pervasive encryption”. In this post we take a look at what’s behind this. With every encryption scheme there is the problem of access to the keys. … Read the rest
Today July 17th 2017 IBM announced the new mainframe called IBM z14. Planned availability date is September 13, 2017.
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| IBM z14 glass model |
From a Linux perspective the IBM tested platforms has been updated to include z14. The following minimum … Read the rest