Introduction Monitoring RAM usage is a key aspect of operating system administration, and the ability to properly interpret the results of system tools seems to be something every systems specialist should possess.…
Author: Michał Wiktorek
Intruduction to AIX
In the world of technology, Unix systems are often perceived as complex, intended exclusively for a narrow group of specialists with advanced knowledge. IBM AIX, one of the most mature and stable…
Linux on Power and Simultaneous Multi-Threading
Do you know what thread settings can be configured on a system running on an IBM Power10 server? Check it out in the following article:https://www.linkedin.com/pulse/linux-power-smt-close-encounters-third-thread-michal-wiktorek-er85f
Linux on Power and SMT – Close Encounters of the Third Thread
This time, a less serious article, meant to be treated as a fun fact 😉 Every AIX administrator knows the available multithreading settings, which are: But how does this look in the…
Linux on Power: Penguin on Steroids – part1
What would Linux on steroids look like?Red Hat Enterprise Linux running with support for 8 threads per core on a Power10 processor, powered by PowerVM virtualization. I invite you to explore the…
IBM PowerHA SystemMirror – Introduction to ROHA
ROHA is a feature of PowerHA clusters that allows dynamic allocation and deallocation of resources to cluster nodes.More details in the following article: https://community.ibm.com/community/user/power/blogs/michal-wiktorek/2024/07/04/powerha-roha [PL] Link do polskiej wersji:https://www.linkedin.com/pulse/ibm-powerha-systemmirror-wprowadzenie-do-roha-michal-wiktorek-hz6bf
PowerVM Performance Monitoring – LPAR migration analysis
When managing a large Power server environment, situations may arise where LPARs need to be migrated between physical servers—for example, when a server requires maintenance.The Power platform allows seamless LPAR migration, but…
Discover the Power of IBM Power – PowerVM Virtualization
There are many virtualization technologies for servers, but the most popular ones run on x86 architecture.How does IBM PowerVM virtualization, which operates exclusively on IBM Power servers, compare to them?Find out in…
PowerVM Performance Monitoring – Tips and Tricks for Grafana
Grafana offers extensive capabilities for creating various charts and tables to visualize performance statistics. However, in large and complex IT environments, filtering and presenting multiple elements effectively can pose challenges.The article below…
IBM PowerHA SystemMirror clusters – how to maintain and not go crazy – part2
PowerHA clusters (formerly HACMP) provide powerful capabilities for managing availability and failure recovery. Clusters serve as an effective tool for restoring system functionality and ensuring data consistency – however, improper use and…