z14 ZR1 / LinuxONE Rockhopper II
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
z_Systems
SUSE Linux Enterprise 12 Service Pack 3 (SLES 12 SP3) released
On September 7th 2017 eleven months after the last service pack SUSE has released the latest updated to their flag ship server distribution.
The kernel level for 12.3 is kernel-4.4.73-5.1. So the major kernel level stayed the same, which allowed … Read the rest
z14
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
SUSE Linux Enterprise 12 Service Pack 2 (SLES 12 SP2) released
On November 8th 2016 eleven months after the last service pack SUSE has released the latest updated to their flag ship server distribution. SUSE also has a blog post with some more details.
The
kernel level for 12.2 is kernel-4.4.21-69.1. … Read the rest
IBM z Systems Processor Optimization Primer
For z Systems optimizations are essential to keep the consolidation ratio high and make the best use of the hardware. As more and more open source software is ported to Linux on z / LinuxONE Kevin Shum has posted his … Read the rest
Java performance improvements
IBM continues to improve the performance of Java on the mainframe. To show this I’ve taken a snapshot of the performance improvements during the latest Java releases. The operating system was a SLES 12 SP1 and this was run on … Read the rest
New whitepaper: “High Availability with KVM for IBM z Systems”
There is a new white paper on IBM Techdocs that covers High Availability aspects for KVM on z.
From the abstract: “This white paper focuses on considerations for setting up a
highly-available KVM for IBM z environment hosting your business… Read the rest
KVM for IBM z Systems V1.1.1 and KVM survey
Together with the z13s IBM also announced the next version KVM for IBM z Systems V1.1.1 (search for 1.1.1 in the announcement). It will be available March 18, 2016. Here are some of the enhancements it will offer:
- Simultaneous
SUSE Linux Enterprise 12 Service Pack 1 (SLES 12 SP1) released
On December 22nd just in time for Christmas SUSE has released the latest updated to their flag ship server distribution.
The
kernel level for 12.1 is kernel-3.12.49-11.1. As one of the top features this distribution is the first one, which … Read the rest
z/Architecture Principles of Operations
The latest version of the Principles of Operations (PoP – z/Architecture Principles of Operation SA22-7832-13) which includes all the new z16 instructions is now available. Be aware that this is a real large pdf!
I’ve been asked multiple times … Read the rest