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QlikView integrated with Hortonworks Data Platform (HDP) running on IBM Power Systems
QlikView is a business intelligence tool that allows data to be discovered and visualized. QlikView supports Hadoop environments as a data source. Read this article for details about how QlikView was tested to integrate with and visualize data in Hortonworks Data Platform (HDP) on IBM POWER8.
Articles 10 Dec 2017
Tableau integrated with Hortonworks Data Platform (HDP) running on IBM Power Systems
Tableau is a business intelligence tool that allows data to be discovered and visualized. Tableau supports Hadoop environments as a data source. Read this article for details about how Tableau Desktop was tested to integrate with and visualize data in Hortonworks Data Platform (HDP) on IBM POWER8.
Articles 09 Dec 2017
vStorm Enterprise integrated with Hortonworks Data Platform (HDP) running on IBM Power Systems
Veristorm vStorm Enterprise makes data migration to Hadoop environments flexible, secure and easy. vStorm already supports data movement to Hadoop solutions running on Linux on IBM Power Systems. Read this article for details about how vStorm was tested to integrate with and move data specifically to Hortonworks Data Platform (HDP) on IBM POWER8.
Articles 08 Dec 2017
MicroStrategy integrated with Hortonworks Data Platform (HDP) running on IBM Power Systems
MicroStrategy is a business intelligence tool that allows data to be explored and visualized. MicroStrategy supports Hadoop environments as a data source. Read this article for details about how MicroStrategy Desktop was tested to integrate with and visualize data in Hortonworks Data Platform (HDP) on IBM POWER8.
Articles 08 Dec 2017
Learn Linux, 101: System logging
Learn how to configure the syslog daemon on your Linux system and how to send log output to a central log server or accept log output as a central log server. Learn about the systemd journal subsystem and rsyslog and syslog-ng as alternative logging systems. Use the material in this tutorial to study for the LPI 102 exam for Linux system administrator certification or to learn for fun.
Articles 28 Nov 2017
Creating a high availability setup for Linux on Power
This article is about high availability or disaster recovery and fail-over for Linux on Power virtual machines (VMs) or logical partitions (LPARs). The solution works for all Linux distributions available for IBM POWER8 and later processor-based servers. Open source software used in this solution are: DRBD and heartbeat, which are available for all supported distributions. We have used Ubuntu v16.04, supported on IBM Power servers to explain and verify the solution.
Articles 07 Nov 2017
Performance of Scylla running on IBM Power Systems
Scylla is an open source NoSQL database that is compatible with Apache Cassandra. Scylla offers several key advantages over Cassandra such as scalability and better performance. Scylla was tested with IBM POWER8 processor-based servers and superior throughput and latency was achieved with both database read and write operations. This article describes the tests that were done with IBM POWER processor-based servers, the performance results, and the value of IBM POWER processor-based servers for Scylla.
Articles 23 Oct 2017
Learn Linux, 101: Maintain system time
Learn how to set your Linux system clock and synchronize your time with an Internet NTP time server. You can use the material in this tutorial to study for the LPI 102 exam for Linux system administrator certification or to learn for fun.
Tutorial 27 Sep 2017
ISV solution ecosystem for Hortonworks on IBM Power Systems
This article provides a list of ISV solutions that can augment the capabilities of Hortonworks Data Platform (HDP) running on Linux on IBM Power Systems. Solutions cover many categories including business intelligence (BI) tools, advanced analytics, and so on.
Also available in: Chinese  
Articles 27 Sep 2017
Enabling parallel Linux operating system deployment over a network on IBM PowerVM
This article explains how you can perform or enable parallel Linux OS installation on IBM PowerVM logical partitions.
Also available in: Chinese  
Articles 21 Sep 2017
A deep dive into the new software-defined converged infrastructure for SAS Foundation mixed workloads
This article describes the details behind the new software-defined converged infrastructure for deploying SAS Foundation Mixed Analytics workloads using IBM Elastic Storage Server (ESS), IBM Spectrum Scale, IBM POWER8, and Mellanox networking technology. This article documents detailed test configurations, test scenarios, performance results, and tuning options for the converged infrastructure. This article provides a methodology to tune each component in the infrastructure horizontally, as well as tuning the solution vertically, which allowed the optimal performance to be achieved.
Also available in: Chinese  
Articles 12 Sep 2017
SAP HANA and Hortonworks Data Platform (HDP) integration with SAP HANA Spark Controller running on IBM Power Systems
This article describes how to set up an environment where SAP HANA accesses and analyzes data stored in Hortonworks Data Platform (HDP) using the SAP HANA Spark Controller. The environment is running entirely on IBM POWER8 processor-based servers. This article describes two deployment options that use either scale-up or scale-out POWER8 servers.
Also available in: Chinese  
Articles 30 Aug 2017
Setting up Apache OpenWhisk on IBM Power on a single-node, on-premises serverless framework
OpenWhisk has significantly gained popularity as the cloud-first distributed event-based programming service. In this article, we discuss about the enablement of OpenWhisk for IBM Power servers. It also provides the configurations needed to start an OpenWhisk cluster in an all-in-one Ubuntu cluster running on IBM Power Architecture.
Also available in: Chinese  
Articles 30 Aug 2017
MongoDB backup and restore methodology using IBM Spectrum Protect for Linux on Power
This article describes the approaches for backing up MongoDB instances on IBM Power Systems. It includes instructions on how to run backup and management agents on the MongoDB servers and how MongoDB can be integrated with traditional backup tools such as IBM Spectrum Protect.
Also available in: Chinese  
Articles 08 Aug 2017
Explore the OpenStack REST APIs for PowerVC
IBM Power Virtualization Center (PowerVC) is an OpenStack-based IaaS cloud solution for the IBM Power platform designed to simplify the management of virtual resources. PowerVC consists of both a GUI and RESTful APIs that perform virtual management tasks for your Power System. This article highlights the REST APIs for both PowerVC Standard Edition and Cloud PowerVC Manager.
Also available in: Chinese   Russian   Japanese   Portuguese  
Articles 02 Aug 2017
Learn Linux, 101: A roadmap for LPIC-1
Use this roadmap to find IBM developerWorks tutorials that help you learn and review basic Linux tasks. And if you're also pursuing professional certification as a Linux system administrator, these tutorials can help you study for the Linux Professional Institute's LPIC-1: Linux Server Professional Certification exam 101 and exam 102. This roadmap is organized according to the 43 objectives in the 101 and 102 exams, which you are required to pass for LPIC-1 certification.
Also available in: Chinese   Japanese   Portuguese  
Articles 31 Jul 2017
OpenPOWER GPU-enabled architecture performance enhancement using the Engineering and Scientific Subroutine Library (ESSL) drop-in acceleration
This article illustrates the methodology to offload the part of computations to GPU without refactoring the applications. The Crossroads/NERSC-9 Memory Bandwidth benchmark is used to showcase the offload of dense matrix multiplication (DGEMM) computations on GPU by linking (compile time) the newer version of CUDA-enabled ESSL (IBM Scientific Library). The use of CUDA-enabled ESSL gives approximately six times performance gain over CPU-only code.
Also available in: Chinese  
Articles 31 Jul 2017
Learn Linux, 101: Localisation and internationalisation
Learn how to use locale and time zone settings to put your Linux system in the right time and place. You can use the material in this tutorial to study for the LPI 102 exam for Linux system administrator certification or to learn for fun.
Also available in: Japanese  
Articles 21 Jul 2017
Put a Linux-based chess app on the cloud with Bluemix and IBM Containers
Build a Docker container that uses WebSockets to expose an existing Linux CLI chess engine as a cloud service. This tutorial shows step-by-step the process for building a Docker container and deploying it as a running container on IBM Containers for Bluemix. It includes sample code and a JavaScript chess game that runs in a browser and illustrates how to consume the WebSocket-based service. You can apply the methods demonstrated to containerize almost any pipe-based Linux application and leverage them as cloud services on Bluemix.
Also available in: Japanese  
Articles 17 Jul 2017
SAS software with Hortonworks Data Platform (HDP) running on IBM POWER8
This article describes how to set up an environment where SAS can access and analyze data stored on Hortonworks Data Platform (HDP) using SAS/ACCESS Interface to Hadoop. The environment is running on IBM POWER8 processor-based servers.
Also available in: Chinese   Japanese  
Articles 06 Jul 2017
OpenPOWER firmware with Intelligent Platform Management Interface (IPMI) features
This article explains the various OpenPOWER aspects (such as system firmware usage, controlling, and debugging) that are related to developers and test engineers.
Articles 04 Jul 2017
Continuous monitoring of server resources utilization using custom scripts
Monitoring IT infrastructure is essential to ensure its stability. Choosing an efficient, scalable, customizable, and light-weight solution for this has always been a challenge with changing requirements. Custom scripts can be used to achieve this smartly unlike the agent-based monitoring method in which all data defaulted by the monitoring tool used will be collected. This article describes the custom script method for monitoring system resources. In this method, the data collector(s) scripts running on data collector node will poll the target systems for data and so can decide on what data to be pulled.
Also available in: Japanese  
Articles 21 Jun 2017
Open Source POWER Availability Tool
Search for Linux open source packages that run on the IBM POWER architecture.
Also available in: Chinese   Japanese  
Articles 20 Jun 2017
OpenPOWER secure and trusted boot, Part 2: Protecting system firmware with OpenPOWER secure boot
Protection of system firmware against malicious attack is paramount to server security. If an attacker is able to inject malicious code at the firmware level, no security measure at the operating system level can fully guarantee the trust of the system. IBM OpenPOWER servers support secure boot of system firmware to ensure the system boots only authorized firmware. When the system boots, each firmware component is verified against a cryptographic signature and integrity-checked against a secure hash of the component. If any check fails, secure boot prevents the system from booting until the problem is corrected.
Articles 05 Jun 2017
Learn Linux, 101: Maintain the integrity of filesystems
Learn how to check the integrity of your Linux filesystems, monitor free space, and fix simple problems. Use the material in this tutorial to study for the Linux Professional Institute (LPI) 101 exam for Linux system administrator certification -- or just to check your filesystems and keep them in good working order, especially after a system crash or power loss.
Also available in: Chinese   Japanese  
Articles 17 May 2017
An open source solution for dockerizing STAF and LTP on IBM Power Systems
STAF and LTP is a widely used regression test combination to validate the behavior of Linux kernel and glibc components. This article describes how to build a STAF and LTP Docker image. By using this image, you can create containers that test the Linux kernel and glibc components.
Also available in: Chinese  
Articles 10 May 2017
Digital Business Start trial offering for IBM Power Enterprise Systems using EnterpriseDB (EDB) Postgres Advanced Server
This article describes how to quickly and easily install and configure EnterpriseDB Postgres Advanced Server with Linux on Power architecture, namely RHEL 7.2 LE. Although it is targeted towards customers who have eligible dark core resources on IBM Power Enterprise Servers, the installation instructions are valid for most IBM Power servers.
Articles 14 Apr 2017
Best practices and basic evaluation benchmarks: IBM Power System S822LC for high-performance computing (HPC)
This article is a quick reference guide for IBM Power System S822LC for high-performance computing (HPC) system users to set processor and GPU configuration to achieve best performance for GPU accelerated applications. Before running an application, users need to make sure that the system is performing to the best in terms of processor frequency and memory bandwidth, GPU compute capacity, and memory bandwidth.
Articles 05 Apr 2017
Digital Business Start trial offer for IBM Power Enterprise Systems with Hortonworks Data Platform
The Digital Business Start for Hortonworks Data Platform (HDP) trial offer is for customers who have IBM® Power Enterprise Servers in their environment and want to enable inactive cores and memory to deploy HDP on RHEL 7.2 LE. This guide walks you through the setup steps.
Articles 04 Apr 2017
Digital Business Start trial offer for IBM Power Enterprise Systems using MongoDB
The Digital Business Start trial offer is for customers who have IBM® Power Enterprise Servers in their environment and want to enable inactive cores and memory to deploy MongoDB on a Linux operating system (OS). This guide walks you through the setup steps.
Articles 15 Mar 2017
Deploying an OpenStack-based private cloud and Hortonworks Data Platform (HDP) on a Linux on IBM Power Systems server
This article describes private cloud deployment with OpenStack and Linux on IBM Power System LC servers that are running KVM. This article also explains the deployment of Hortonworks Data Platform (HDP) using OpenStack.
Articles 09 Mar 2017
Getting started with Neo4j on IBM Power Systems running Linux
Neo4j on IBM Power Systems running Linux is an ideal solution for managing big data workloads. In this article, you can learn how to install Neo4j and begin using it with your application and data set today.
Articles 28 Feb 2017
Quantum computing for everyone, a programmer’s perspective
About a week ago, IBM launched Quantum Experience. The cornerstone of this initiative is to make a real, working quantum computer available for anyone. This blog discusses Quantum Experience, gives the basics while trying to dwell as little as possible on Algebra or Physics and, at the end, we’ll build a simple algorithm and discuss the results.
Blog 21 Feb 2017
vCPU hotplug and hotunplug using libvirt v2
This article talks about how to perform a virtual processor (vCPU) hotplug/hotunplug operation using libvirt version 2 in a PPC64LE environment.
Articles 20 Feb 2017
OpenPOWER secure and trusted boot, Part 1: Using trusted boot on IBM OpenPOWER servers
IBM OpenPOWER servers provide a firmware level security feature known as Trusted Boot. Trusted Boot helps defend against a boot code cyberattack by helping to verify that your server is running only authorized firmware. Integrity of your firmware is vital to the security of your system. Trusted Boot works by taking measurements of the executable boot code as the server boots and recording these measurements to a dedicated hardware security module known as the Trusted Platform Module (TPM). Together with a process known as remote attestation, you can use the data in the TPM to verify the integrity of your server's boot code.
Articles 17 Feb 2017
Installing CentOS 7.2 on IBM Power System S822LC for high-performance computing (HPC) with a USB device
Use this article to install CentOS on an IBM Power System LC server with a USB device. This installation is specifically for installing CentOS on an IBM Power System (OpenPOWER) server.
Articles 17 Feb 2017
Red Hat Virtualization (RHV) environment on IBM Power Systems
This article describes how to install and configure RHV components based on RHEL 7.3 LE, on an IBM POWER8 host.
Articles 13 Feb 2017
Learn Linux, 101: Configure hardware settings
Learn how to set up your computer hardware for Linux and how to find information about your hardware via Linux commands and tools. You can use the material in this tutorial to study for the LPI 101 exam for Linux system administrator certification, or to learn for fun.
Also available in: Japanese  
Articles 09 Feb 2017
Analyzing performance using perf annotate
This article demonstrates how Perf annotate can be used to analyze performance details alongside actual code with their assembly instructions. It also describes how the new cross-architecture annotation can be used to analyze recorded profile on different architecture, for example, record data on IBM PowerPC server and annotate on your notebook or x86 system.
Also available in: Japanese  
Articles 01 Feb 2017
Get started with MongoDB on IBM Power Systems running Linux
MongoDB on IBM Power Systems running Linux is an ideal solution for managing big data workloads. Learn how to install MongoDB and begin using it with your application and data set today.
Also available in: Chinese   Japanese  
Articles 23 Dec 2016
Using Docker Swarm mode on OpenPOWER servers
This article explains how to set up a Docker swarm cluster using the newly introduced Swarm mode feature of Docker Engine.
Articles 21 Dec 2016
Vulnerability scanning of Docker images on OpenPOWER systems
This article explains how to configure and set up Clair vulnerability scanner for Docker images on OpenPOWER servers.
Articles 21 Dec 2016
Configuring flannel overlay network with VXLAN for Docker on IBM Power Systems servers
This article explains how to setup flannel based overlay network for Docker containers on IBM Power servers.
Articles 21 Dec 2016
Enforcing cluster-wide policies for a Kubernetes-based Docker cluster
This article explains how cluster-level policies can be enforced for Kubernetes by using PodSecurityPolicy.
Articles 21 Dec 2016
IBM Power Systems solution for EnterpriseDB Postgres Advanced Server
This article describes the general installation and tuning of EnterpriseDB Postgres Advanced Server database on IBM Power Systems servers running Linux. IBM Power servers offer significant advantages compared to similar configurations of Intel Xeon processor-based systems (Broadwell).
Also available in: Chinese   Japanese  
Articles 21 Oct 2016
Mesos and Kubernetes on a hybrid (IBM Power and x86) architecture scenario
In an actual production environment, our customers often have a complicated application running environment that includes a hybrid architecture, a hybrid distributed system, and so on. Also, our customers prefer a unified container cloud platform and always use Kubernetes as a framework of Mesos. This article can help you to set up Kubernetes on a Mesos cluster on a hybrid architecture.
Also available in: Chinese   Japanese  
Articles 03 Oct 2016
Installing Ubuntu on an IBM Power System LC server
Use this tutorial to install Ubuntu on an IBM Power System LC server using several different methods, including USB device, virtual wizard, or network boot installation. This installation is specifically for installing Ubuntu on an IBM Power System S812 LC or S822 LC (OpenPOWER) server, but can be easily adapted to a different Power System LC server.
Also available in: Chinese  
Tutorial 08 Sep 2016
Setting up a Mesos/Marathon cluster on RHEL 7.1 little endian
This article describes the steps to set up a Mesos/Marathon cluster on OpenPOWER servers.
Also available in: Chinese   Japanese  
Articles 07 Sep 2016
Manage your big data workloads with NoSQL solutions on IBM Power Systems running Linux
Manage your big data workloads with NoSQL solutions, MongoDB and EnterpriseDB on IBM Power Systems running Linux.
Also available in: Chinese  
Articles 30 Aug 2016
Support multiple keyboard layouts in web-based VNC apps
Take advantage of a recently introduced browser API (available in Chrome, Firefox, and Opera) to add support for multiple keyboard layouts to web-based VNC clients.
Tutorial 23 Aug 2016
Linux server hardening and security verification
In a world where securing your computer systems is more difficult than ever, there are steps you can take to protect them. This article includes tips and tools to help you harden and secure your Linux servers by using processes such as sane configurations, fuzz testing and penetration testing.
Also available in: Chinese  
Articles 17 Aug 2016
Managing docker containers with orchestration
Docker is a tool for deploying, executing and managing containers. This article provides links to Linux on Power Systems Docker binaries and the steps to install them.
Also available in: Chinese   Japanese  
Articles 03 Aug 2016
Get started with EDB Postgres Advanced Server 9.5 on IBM Power Systems running Linux
EnterpriseDB EDB Postgres Advanced Server 9.5 on IBM Power Systems running Linux is an ideal solution for managing business critical workloads. Learn how to install Postgres Advanced Server 9.5 and begin by using it with your application and data set today.
Also available in: Chinese  
Articles 03 Aug 2016
Using docker containers networks
To build web applications that act in concert securely, use the docker networks feature. Networks, by definition, provide complete isolation for containers. Hence, it is important to have control on the networks that your applications run on. Docker container networks give you that control. The following article describes describes the type of networks that the docker engine creates by default and shows you how to create your own, user-defined networks.
Also available in: Chinese   Japanese  
Articles 03 Aug 2016
Machine Learning, Deep Learning 101
This article describes the growing relevance of Machine Learning used in various kinds of analytics along with an overview of Deep Learning. It provides an end-to-end process for using Machine Learning and Deep Learning and the options for getting started on IBM® Power Systems™.
Also available in: Chinese   Japanese  
Articles 20 Jul 2016
Learn Linux, 101: Create, monitor, and kill processes
Learn about process management on Linux: how to shuffle processes between foreground and background, find out what's running, kill processes, keep processes running after you've left for the day, and multitask in a terminal window. You can use the material in this tutorial to study for the Linux Professional Institute LPIC-1: Linux Server Professional Certification exam 101, or just to learn for fun.
Also available in: Chinese  
Articles 12 Jul 2016
Set up a docker private registry with basic HTTP authentication support
Learn how to set up a docker private registry with TLS and HTTP authentication on an OpenPower server running Red Hat Enterprise Linux (RHEL) 7.1 LE.
Also available in: Chinese   Japanese  
Articles 08 Jul 2016
Tuning guide for MongoDB on IBM Power Systems
This tuning guide will help you achieve optimal performance when running MongoDB on IBM Power Systems by providing guidelines for system-level, virtualization-level and application-level tuning.
Also available in: Chinese  
Articles 24 Jun 2016
Little endian and Linux on IBM Power Systems
IBM Linux on Power Chief Engineer, Jeff Scheel, answers your questions about little endian and Linux on IBM Power Systems in this FAQ
Articles 16 Jun 2016
Quick start guide to Apache Bigtop v1.1 on IBM SoftLayer OpenPOWER with Ubuntu 14.04
This article outlines the process of installing the Apache Hadoop and Spark Bigtop v1.1.0 bundle on an IBM® SoftLayer® POWER8® bare metal server running Ubuntu 14.04. Apache Zeppelin notebook is included in the bundled installation script to run an initial benchmark suite.
Also available in: Chinese   Japanese  
Articles 01 Jun 2016
Building Boost libraries using the xlcpp toolset for IBM compilers on Linux
This article introduces the procedures to build Boost libraries with Boost build engine, b2/bjam, using the new xlcpp toolset of IBM XL compilers for Linux on little endian systems. The target audience is software engineers interested in increasing productivity and quality of C++ applications by using the expertly designed Boost libraries. This is important for the development of high-quality applications, where the project requirements exceed the extent of features provided by the C++ standard libraries.
Also available in: Chinese  
Articles 22 Apr 2016
Learn Linux, 101: Automate system administration tasks by scheduling jobs
Learn how to run the same job every day, week, or month. And learn how to schedule a single job when system usage is low, or when you would ratherspend your time in other ways. You can use the material in this tutorial to study for the LPI 102 exam for Linux system administrator certification or to learn for fun.
Tutorial 29 Mar 2016
Learn Linux, 101: Manage user and group accounts and related system files
Learn how to manage user and group accounts and the related system files. You can use the material in this tutorial to study for the LPI 102 exam for Linux system administrator certification, or to learn for fun.
Also available in: Chinese  
Tutorial 21 Mar 2016
Learn Linux, 101: File and directory management
You've probably heard that everything in Linux is a file, so start on the right path with a solid grounding in file and directory management: finding, listing, moving, copying, and archiving. Use the material in this tutorial to study for the Linux Professional Institute LPIC-1: Linux Server Professional Certification exam 101, or just to learn for fun.
Tutorial 21 Mar 2016
Learn Linux, 101: Text streams and filters
There's a lot more to text manipulation than cut and paste, particularly when you aren't using a GUI. In this tutorial, Ian Shields introduces you to text manipulation on Linux using filters from the GNU textutils package. By the end of this tutorial, you will be manipulating text like an expert. Use the material in this tutorial to study for the Linux Professional Institute LPIC-1: Linux Server Professional Certification exam 101, or just to learn for fun.
Also available in: Chinese  
Tutorial 21 Mar 2016
Get started with IBM Power Virtualization Center (PowerVC)
Virtualization plays a key role in cloud computing. IBM Power Virtualization Center (PowerVC) is a new virtualization management tool that's built on OpenStack and designed to simplify the management of virtual resources in Power Systems environments, and thus improve administrator productivity. In this tutorial, we'll cover fundamental concepts, installation, and basic configuration techniques, as well as ways to configure various resources like hosts, storage, and networks. We'll also take a look at virtual machines and images, and show you how to create and manage a VM using PowerVC with the help of screens.
Also available in: Chinese   Japanese  
Articles 09 Mar 2016
Learn Linux, 101: Use basic SQL commands
Learn how to query databases and manipulate data by using basic SQL commands. You can use the material in this tutorial to study for the LPI 102 exam for Linux system administrator certification, or to learn for fun.
Also available in: Chinese  
Tutorial 24 Feb 2016
Learn Linux, 101: Find and place system files
Learn the correct location for files under the Filesystem Hierarchy Standard (FHS) on a Linux system and see how to find important files and commands. You can use the material in this tutorial to study for the LPI 101 exam for Linux system administrator certification, or just to explore file organization and management.
Also available in: Chinese   Japanese  
Articles 28 Jan 2016
Learn Linux, 101: Manage file permissions and ownership
Learn to manage file ownership and permissions on your Linux filesystems. Learn about access modes such as suid, sgid, and the sticky bit and how to use them to enhance security. You can use the material in this tutorial to study for the LPI 101 exam for Linux system administrator certification, or just to learn about file ownership, permissions, and security.
Also available in: Chinese   Japanese  
Articles 27 Jan 2016
Learn Linux, 101: Create partitions and filesystems
Learn how to create partitions on a disk drive and how to format them for use on a Linux system as swap or data space. Use the material in this tutorial to study for the Linux Professional Institute LPIC-1: Linux Server Professional Certification exam 101, or just to learn about partitions and Linux filesystems for your own use.
Also available in: Chinese   Japanese  
Articles 27 Jan 2016
Learn Linux, 101: Create and change hard and symbolic links
Learn how to create and manage hard and symbolic links to files on your Linux system. You can use the material in this tutorial to study for the LPI 101 exam for Linux system administrator certification, or just to explore the differences between hard and soft, or symbolic, links and the best ways to link to files, as opposed to copying files.
Also available in: Chinese   Japanese  
Articles 27 Jan 2016
Learn Linux, 101: Manage disk quotas
Learn to set and check disk quotas on your Linux filesystems to prevent individual users from using more space than allowed and to prevent whole filesystems from filling up unexpectedly. You can use the material in this tutorial to study for the LPI 101 exam for Linux system administrator certification, or just to learn about quotas.
Also available in: Chinese   Japanese  
Articles 27 Jan 2016
Learn Linux, 101: Control mounting and unmounting of filesystems
Learn to mount your Linux filesystems; configure and use removable USB, IEE 1394, or other devices; and properly access floppy disks, CDs, and DVDs. You can use the material in this tutorial to study for the LPI 101 exam for Linux system administrator certification, or just to learn about accessing Linux filesystems.
Also available in: Chinese   Chinese   Japanese  
Articles 27 Jan 2016
Learn Linux, 101: Customize or write simple scripts
Learn how to customize existing scripts or write simple new bash scripts using standard shell syntax, looping and control structures, and tests for success or failure. You can use the material in this tutorial to study for the LPI 102 exam for Linux system administrator certification, or to learn for fun.
Also available in: Chinese  
Tutorial 18 Jan 2016
Installing Red Hat Enterprise Linux 7.2 on IBM POWER8 and x86 in bare metal mode: A comparison
This article can help administrators who need to install Red Hat Enterprise Linux on an IBM® POWER8™ processor-based system in bare metal mode by comparing the process of installation on an x86 system.
Also available in: Chinese   Japanese  
Articles 07 Jan 2016
Learn Linux, 101: Search text files using regular expressions
Learn how to use regular expressions, and then use them to find things in files on your filesystem. You can use the material in this tutorial to study for the LPI 101 exam for Linux system administrator certification, or just to learn for fun.
Also available in: Chinese   Chinese  
Articles 31 Dec 2015
Learn Linux, 101: The Linux command line
GUIs are fine, but to unlock the real power of Linux, there's no substitute for the command line. In this tutorial, Ian Shields introduces you to some of the major features of the bash shell, with an emphasis on the features that are important for LPI certification. By the end of this tutorial, you will be comfortable using basic Linux commands like echo and exit, setting environment variables, and gathering system information. Use the material in this tutorial to study for the Linux Professional Institute LPIC-1: Linux Server Professional Certification exam 101, or just to learn for fun.
Articles 23 Dec 2015
Learn Linux, 101: RPM and YUM package management
Learn how to install, upgrade and manage packages on your Linux system. This tutorial focuses on the Red Hat Package Manager (RPM) developed by Red Hat, as well as the Yellowdog Updater Modified (YUM) originally developed to manage Red Hat Linux systems at Duke University's Physics department. You can use the material in this tutorial to study for the LPI 101 exam for Linux system administrator certification, or just to explore the best ways to add new software and keep your system current.
Also available in: Chinese   Japanese  
Articles 21 Dec 2015
Learn Linux, 101: Runlevels, boot targets, shutdown, and reboot
Learn to shut down or reboot your Linux system, warn users that the system is going down, and switch to a more or less restrictive runlevel. You can use the material in this article to study for the LPIC-1: Linux Server Professional Certification, or just to learn about shutting down, rebooting, and changing runlevels. The material corresponds to the LPI April 2015 Version 4.0 objectives.
Also available in: Japanese  
Articles 21 Dec 2015
Learn Linux, 101: Customize and use the shell environment
Learn how to customize your Linux shell environment and write simple bash functions. You can use the material in this tutorial to study for the LPI 102 exam for Linux system administrator certification, or to learn for fun.
Also available in: Chinese   Japanese  
Articles 12 Dec 2015
IBM PurePower Integrated Manager: Updates and compliance considerations
This article provides information about the Updates and Compliance function in IBM® PurePower Integrated Manager. You can learn about version compliance status, connection modes, and installation of firmware or software versions of components in an IBM PurePower System™.
Also available in: Chinese  
Articles 07 Dec 2015
Microservices in action, Part 2: Containers and microservices — a perfect pair
Discover how Linux containers are revolutionizing software development and powering microservices to shift an entire industry. Know the requirements that are critical to success in microservices adoption and how container-based infrastructures make it easier to meet those requirements.
Also available in: Chinese   Japanese   Portuguese  
Articles 13 Nov 2015
Performance of inline assembly: An analysis based on the computation of Fibonacci sequence
Using the Fibonacci sequence computation as an example, this article analyzes the speed advantage of an inline assembly implementation in comparison to the performance of other programming techniques such as the recursive algorithm, the dynamic programming implementation, the iterative approach, and the optimized matrix power algorithm. The target audience is software engineers interested in further accelerating the execution of their applications by handcrafting the assembler codes for the most performance-critical sections.
Also available in: Chinese  
Articles 28 Oct 2015
Processor utilization difference between IBM AIX and Linux on Power – apple to apple comparison
This article covers the case study to find the comparison between IBM AIX and Linux on Power processor utilization with the help of network workload. The article also explores why there is a considerable difference between the overall system-level processor utilization reported on the IBM Power hardware while running the same workload on AIX and Linux on Power platforms.
Also available in: Chinese   Japanese  
Articles 15 Oct 2015
Core dump debugging for the IBM SDK for Node.js
Debug Node.js application crashes and memory leaks with an Eclipse add-on that works alongside the IBM SDK for Node.js to help you diagnose core dumps.
Also available in: Chinese   Japanese  
Articles 30 Sep 2015
Migrate a LAMP application to Bluemix
Learn how to migrate a classic LAMP application (Drupal) to IBM Bluemix.
Also available in: Chinese   Japanese   Portuguese  
Articles 18 Sep 2015
Learn Linux, 101: Boot the system
Learn to guide your Linux system through the boot process. You can use the material in this tutorial to study for the LPIC-1 101 exam for Linux system administrator certification or just to learn about the boot process. The material corresponds to the LPI April 2015 Version 4.0 objectives.
Also available in: Chinese   Japanese  
Articles 25 Aug 2015
Learn Linux, 101: Debian package management
Learn how to install, upgrade, and manage packages on your Linux system. This tutorial focuses on the Advanced Packaging Tool, or APT, which is the package management system used by Debian and distributions derived from Debian, such as Ubuntu. You can use the material in this tutorial to study for the LPI 101 exam for Linux system administrator certification, or just to explore the best ways to add new software and keep your system current.
Also available in: Chinese   Japanese  
Articles 24 Aug 2015
Learn Linux, 101: Manage shared libraries
Learn how to determine which shared libraries your Linux executable programs depend on and how to load them. You can use the material in this tutorial to study for the LPI 101 exam for Linux system administrator certification, or just to learn for fun.
Also available in: Chinese   Japanese  
Articles 18 Aug 2015
Learn Linux, 101: Install a boot manager
Learn how to choose and configure a boot manager for your Linux system. You can use the material in this tutorial to study for the LPI 101 exam for Linux system administrator certification, or to learn for fun.
Also available in: Japanese  
Articles 14 Aug 2015
Learn Linux, 101: Hard disk layout
Learn how to design a partition layout for disks on a Linux system. Use the material in this tutorial to study for the Linux Professional Institute LPIC-1: Linux Server Professional Certification exam 101, or to learn for fun.
Also available in: Chinese   Chinese   Japanese  
Articles 13 Aug 2015
Advanced features of inline assembly for Linux on z Systems
The objective of this article is to discuss the advanced features of inline assembly supported by IBM XL compiler for Linux on z Systems. The target audience is software engineers who are interested in going beyond the extent of the optimizations provided by the compiler to fine tune the most performance-sensitive code section of their applications.
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Articles 12 Aug 2015
The basics of inline assembly for Linux on z Systems
Inline assembly allows software engineers to handcraft the assembler codes for the most performance-sensitive parts of their programs. This feature unleashes the hardware advantage of IBM z Systems as well as programmer ingenuity to realize the development of high-performance applications. The objective of this article is to discuss the basics of inline assembly feature supported by IBM compiler for Linux on z Systems.
Also available in: Russian   Japanese  
Articles 12 Aug 2015
Improve the performance of function calls with OpenPOWER ABI
This article is to explain what OpenPOWER application binary interface (ABI)introduces to improve performance of function call. Different from the 64-bit PowerPC ELF ABI Supplement 1.9 (ELF ABI v1), OpenPOWER ABI gets rid of function descriptor and doesn't require callers to initialize environment any more. Aligned with current industry practice, it makes the callees set up the TOC pointer in place, introduces dual entry to ensure the establishment as required, and uses trampoline to support lexical nesting function calls.
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Articles 10 Jul 2015
Optimization techniques for library functions using IBM PowerPC processors
This article explains the various optimization techniques in power assembly so as to make applications run faster. Applying certain techniques in IBM® PowerPC® processor-specific applications improves the performance of the program. Some of the following techniques are now applied on Linux glibc string and memory functions and there is a significant amount of performance improvement. This article is intended for IBM AIX and Linux programmers who write assembly code for performance improvement in IBM Power Architecture.
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Articles 09 Jul 2015
OpenMP support in IBM XL compilers
The IBM XL Fortran and XL C/C++ for Linux on Power little endian compilers support the OpenMP API V3.1 and some selected V4.0 features. This enables the compiler to use the multicore hardware to improve performance. This article describes the OpenMP features supported in the latest XL compilers. It also includes some examples to illustrate the benefits of using these new features.
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Articles 29 Jun 2015
Accelerating performance with inline assembly using IBM XL C/C++ compiler on IBM z Systems
IBM® XL C/C++ compiler Version 1 for Linux on z Systems was released in 2015. This marked the first time inline assembly feature was supported by IBM compiler for Linux on z Systems. With inline assembly, software engineers are able to further accelerate the execution of applications by handcrafting the assembler codes for the most performance-sensitive parts. This feature unleashes the hardware advantage of IBM z Systems™ as well as programmer ingenuity to realize the development of high-performance applications. The objective of this article is to introduce the assembler instructions on z Systems to be used with inline assembly. The target audience are advanced software engineers who are interested in going beyond the extent of the optimizations provided by the compiler to fine tune the most performance-sensitive code section of high-performance applications on z Systems.
Also available in: Russian   Japanese  
Articles 17 Jun 2015
Problem reporting for IBM PowerKVM host through IBM Electronic Service Agent for IBM PowerLinux
This article explains the use of IBM Electronic Service Agent (ESA) and the configuration that administrators must perform for reporting hardware problems for IBM PowerKVM hosts automatically.
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Articles 02 Jun 2015
Learn Linux, 101: Streams, pipes, and redirects
If you think streams and pipes make a Linux expert sound like a plumber, here's your chance to learn about them and how to redirect and split them. You even learn how to turn a stream into command arguments. You can use the material in this tutorial to study for the LPI 101 exam for Linux system administrator certification, or just to learn for fun.
Also available in: Chinese  
Articles 18 May 2015
Build a remote-controlled Raspberry Pi 2 monitor for your IBM Bluemix apps
Demystify the Internet of Things with a hands-on project that uses the IBM Watson IoT Platform to interconnect your devices and apps. Set up a Raspberry Pi 2 to monitor uptime and access time for a running IBM Bluemix app, capturing the results in a graphing app that you can deploy to Bluemix. And code a desktop application that controls the Raspberry Pi 2 monitor remotely.
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Articles 28 Apr 2015
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