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Exploring IKEv2 with ECDSA certificate in IBM AIX
Internet security is a major concern now-a-days. Internet Protocol Security (IPSec) is a security protocol suite which works on the L3 layer of network and provides a strong security with the help of different types of authentication and encryption mechanisms. This article discusses about the usage of the Elliptic Curve Digital Signature Algorithm (ECDSA) certificate based authentication mechanism for Internet Key Exchange Version 2 (IKEv2).
Articles 23 Jul 2014
IBM AIX SAN Volume Controller update and migration
This article discusses the tasks to be performed for IBM® AIX® when updating or migrating IBM System Storage® SAN Volume Controller (SVC) to a new release. It includes a script that makes it easier to prepare many AIX servers for update or migration.
Articles 19 Jun 2014
IBM PowerKVM on IBM POWER8 (Part 1)
This tutorial takes the reader through the details involved in bringing up an IBM® Power Systems™ server (that is based on IBM POWER8™ processor technology) with Open Power Abstraction Layer (OPAL) and IBM PowerKVM™ stack. This article also covers the upgradation of firmware and various host operating system (OS) installation methods.
Tutorial 19 Jun 2014
Explore the OpenStack REST APIs for PowerVC
IBM Power Virtualization Center Express Edition (PowerVC) is an IaaS cloud solution designed to make it easier to build and manage virtual resources in a Power Systems Software Defined Environment or a cloud infrastructure. It is primarily based on OpenStack and includes OpenStack industry-standard application programming interfaces. Learn about the APIs for each OpenStack component and the tasks they will help you complete.
Articles 13 Jun 2014
Getting bosboot errors, don’t reboot just yet
You are about to reboot your system for some planned maintenance, perhaps through some upgrade or migration. For this process to complete, you issue a : bosboot - a command. It may be the case that the bosboot command fails, the output informing you "it is not safe to reboot your system". Though initially, this might come across as a real and present problem (which it is), there are tasks to perform that can prove that the system is indeed rebootable with the current image. This article summarizes the tasks that can be performed to verify if it is save to reboot.
Articles 12 May 2014
Getting started with SSH security and configuration
Are you a new UNIX(R) administrator who needs to be able to run communication over a network in the most secure fashion possible? Brush up on the basics, learn the intricate details of SSH, and delve into the advanced capabilities of SSH to automate securely your daily system maintenance, remote system management, and use within advanced scripts to manage multiple hosts.
Also available in: Chinese   Korean  
Articles 09 May 2014
Map VIOS LUNs with minimal requirement
This article maps the logical unit numbers (LUNs) between the client and the server. The only requirement it has is to run as root and be able to use Secure Shell (SSH) to connect an IBM® AIX® jump server to the VIOS client and server without entering the password. It provides a lot of information including the Virtual I/O Server (VIOS) that is providing the Shared Ethernet Adapter (SEA), the virtual Small Computer System Interface (VSCSI), and the command to re-create the virtual target device as well.
Articles 02 May 2014
Enforcing environmental limits
Controlling user limits should not only cover the resources being used, it should also encompass environmental limitations on the account in general. This article describes what user limits should cover and also demonstrates the concepts of limits with examples.
Articles 11 Apr 2014
IBM AIX commands you should not leave home without
Do you ever wish you could answer some of your own questions when you work with IBM AIX® and your IBM Power Systems™ server? Do you ever feel you could save time by not having to call on the support professionals all the time? Well, wish no more. Shiv Dutta discusses some of the AIX commands that answer those questions and tells you how to enlarge the list of such answers.
Also available in: Chinese  
Articles 04 Apr 2014
Secure LPM: Live Partition Mobility with IPSec
In plain Live Partition Mobility (LPM), transfer of memory contents of the source logical partition (LPAR) goes unprotected over the network. Secure LPM provides an option to administrators to choose whether or not to transfer memory contents through an Internet Protocol Security (IPSec) tunnel. This article explains the steps to configure secure LPM and provides an overview of the available security profiles that mandate the creation of automatic tunnels. It also covers the concepts, prerequisites, and hardware and software configuration along with screen captures.
Articles 27 Mar 2014
Getting started with Nmap for system administrators
Nmap is an open source port scanner for Linux® and many other platforms that can boost your system's security. This article discusses the basics of Nmap for system administrators and how to get started using it.
Articles 24 Mar 2014
Building an STRSQL utility with PowerRuby
This tutorial creates a Rails version of old green screen Start SQL Interactive Session (STRSQL) utility. Most IBM i professionals use STRSQL on IBM i, but if you have not, simply sign on to your IBM i 5250 and enter STRSQL on the command line. Other products duplicate the STRSQL support as a client/server application, but this Rails version stays completely on the IBM i server and use any device with a browser as the interface.
Tutorial 20 Mar 2014
Create nmon web pages in an enterprise environment using nmon2rrd
With nmon, you can capture performance data into a CSV file. This can then be converted into a graphic form using many tools that are available. One such rather good tool is nmon2rrd, which by using rrdtool will convert the time series data into a meaningful graphic HTML page.
Articles 20 Mar 2014
Continuous integration setup for IBM System Planning Tool
This article describes the detailed steps to configure your own continuous integration build set up for the IBM® System Planning Tool (SPT) without making use of any other publicly available continuous integration tools. This setup comes with the scheduled code extraction and build, scheduled test suite execution, and scheduled code coverage report generation features. You can use this article as a reference while setting up your own continuous integration environment for any of your projects as it gives step-by-step configuration details. This greatly reduces your research, exploration, and development time of the project setup.
Articles 07 Mar 2014
How to read detailed data of error-log entries
This article aims at explaining the method of reading detailed data of error-log entries using C programs. As you read, you will be introduced to various functions, structures, and constructs to be used for this and an example code to end the article.
Articles 11 Feb 2014
Configuration of Oracle RAC 11g on IBM AIX using IBM GPFS 3.5
This tutorial explains how to configure Oracle RAC using two nodes, and covers the concepts, pre-requisites, hardware and software configuration, and the troubleshooting tips for the errors encountered during configuration. This tutorial covers everything starting from using IBM® General Parallel File System (IBM GPFS™) and configuring the grid, followed by installing the database, and finally creating the database instance. Considering the demand for this configuration from various customers, this tutorial can be very useful in understanding Oracle RAC and setting up a cluster.
Tutorial 05 Feb 2014
IBM AIX MPIO: Best practices and considerations
This article can help you to learn the best practice configuration details and considerations to optimize your IBM® AIX® Multi Path I/O (MPIO) solutions, and also to easily determine the MPIO options that are most suitable for your applications and business needs.
Articles 20 Jan 2014
IBM Entrepreneur Week
IBM Entrepreneur Week is a one-of-a-kind opportunity for you to meet, interact, and connect with entrepreneurs, venture capitalists, industry leaders, and academics from around the world. If you're a startup or entrepreneur, join us onlne for our inaugural IBM Entrepreneur Week, 3-7 Feb 2014. There will be events taking place online and in locations worldwide, including face-to-face and virtual mentoring sessions, a women entrepreneur-focused event, and a LiveStream broadcast of the SmartCamp Global Finals in San Francisco.
Articles 15 Jan 2014
Accessing the USB drive from IBM AIX on an IBM Power Systems server
This article explains the process to connect and mount a Universal Serial Bus (USB) drive on an IBM® Power Systems™ server from an IBM AIX® logical partition (LPAR).
Articles 13 Jan 2014
String externalization practices and considerations for UNIX shell scripts
In this article, we provide practical "How-Tos" and experiences on externalizing shell script messages in a product. Also, we provide suggestions on what to consider before and during translation enablement from a globalization perspective. The target audience is product developers who would like to enable their shell scripts for translation. After reading this article, readers can understand the considerations for externalizing shell script messages, realize the end-to-end process of string extraction and translation, and be aware of some known issues and their solutions.
Also available in: Russian  
Articles 24 Dec 2013
IBM AIX audit on an LDAP server
Also available in: Russian  
Articles 09 Dec 2013
IBM PureFlex System virtualization configuration for optimal functional capability
This tutorial covers the common configurations that are necessary to get optimal results and usage from the IBM® PureFlex™ System environment, using IBM Flex System Manager™ capabilities. There are prerequirements for every Flex System Manager operation, which might be missed or performed incorrectly. Also, there can be multiple resources to be configured in the virtualization environment, and therefore, the order of configuration also plays a big role.
Articles 19 Nov 2013
Extending snap data collection
This article aims at equipping users with the knowledge of extending the snap utility to collect debug data for third-party components installed on a system. Some background understanding of snap such as architectural overview, various components, and so on are also covered as a part of this article. We conclude the article with a full-fledged example.
Also available in: Chinese  
Articles 11 Nov 2013
Hardware RAID configuration on the IBM Power platform
This tutorial explains the process to configure the hardware RAID on the IBM® Power® platform.
Also available in: Chinese  
Tutorial 07 Nov 2013
Tracing IBM AIX hdisks back to IBM System Storage SAN Volume Controller (SVC) volumes
When working in an IBM AIX® environment that uses the IBM System Storage® SAN Volume Controller (SVC), you need to be able to determine the SVC volumes that represent each AIX hdisk. This article covers the procedure to perform this manually as well as automate the process by using a script. With these skills, you will be able to better manage the storage on your SVC and AIX systems.
Also available in: Chinese  
Articles 01 Nov 2013
IBM PowerHA SystemMirror rapid deploy cluster worksheets for IBM AIX
This tutorial outlines the high-level requirements to plan out a cluster configuration with a checklist approach and then proceeds with the deployment instructions through the new cluster command-line interface (CLI). The steps outlined are for illustration purposes and can be easily modified to deploy more-complex configurations. Note that beyond these instructions, there are alternative paths using the smitty sysmirror and IBM Systems Director interface, which are well documented in IBM® Redbooks® and online documentation. The CLI examples shown were primarily tested using the 7.1.2 cluster release and show options and flags that might not have been retrofitted in the earlier version 7 releases.
Articles 23 Oct 2013
Using the NIM service handler with the NIM Alternate Disk Migration tool
This article describes how to use nimsh with nimadm to migrate to IBM® AIX® version 7.1.
Also available in: Chinese  
Articles 15 Oct 2013
How to write trace format entries
This article aims at equipping users with the knowledge required to write effective trace format entries. We will look at elements of the trace format entry, covering each of them with examples and situations where they can be handy. There is an example at the end of the article to give you a sense of how these pieces of a puzzle fit together.
Also available in: Chinese  
Articles 03 Oct 2013
Command-line interaction for IBM i Access Client Solutions
In this article, you can learn how to invoke Access Client Solutions from the command line and see the utility through functional examples.
Articles 03 Oct 2013
System call interception using a standard public IBM AIX interface
IBM AIX® provides a standard public interface named kmod_util to support system call interception since AIX 6.1 TL06 and AIX 7.1. In this tutorial, we provide step-by-step instructions explaining how kmod_util can be used to intercept system calls under various situations.
Also available in: Chinese  
Articles 26 Sep 2013
Strengthening the SSH configuration used in GPFS installations to make them more secure
Currently, a prerequisite of any IBM General Parallel File System (IBM GPFS) installation is that all the nodes on the cluster must be able to communicate with each other using the root user ID and that this is done without a password in order to facilitate automated tasks. But this configuration represents a security exposure, because security best practices forbid that the root user can log in remotely. The configuration presented in this article resolves this dilemma by allowing the GPFS cluster nodes to continue communicating with each other using the root ID and at the same time blocking this type of connection to other users and nodes.
Articles 19 Sep 2013
Vice partition virtualization for IBM AFS
IBM® AFS™ storage area network (SAN) storage virtualization provides the mechanism to migrate the existing vice partitions from one file server to another file server without restarting the file server or terminating the client processes. This article explains the problem with the existing IBM AFS file server setup in migrating the vice partitions from one file server to another and the steps to resolve the same using IBM AFS SAN storage virtualization.
Also available in: Chinese  
Articles 10 Sep 2013
IBM PowerHA SystemMirror cluster migration
IBM® PowerHA® SystemMirror is an application that makes a system fault resilient and reduces downtime of applications or databases. This article helps customers to plan for and successfully accomplish cluster migration.
Articles 04 Sep 2013
Decoding location codes
When you have a faulty device, you need to know where the device is located physically on your system, so it can be replaced. The errpt or lscfg comand provides a location code specifying where the faulty device is located. Armed with the location code and a server manual or an IBM® Redbooks® title covering your model, or even better with access to IBM web information center, you should be able to identify exactly where the device is located.
Also available in: Chinese  
Articles 26 Aug 2013
IBM PowerHA SystemMirror HyperSwap with Metro Mirror
IBM® HyperSwap® with Metro Mirror is a new feature in IBM PowerHA® SystemMirror 7.1.2 Enterprise Edition. It provides continuous availability against storage errors and prevents unnecessary application fallover to a disaster recovery site, which happens only if the storage fails. This article introduces HyperSwap with PowerHA and provides a detailed explanation of how to plan for and configure the PowerHA Enterprise Edition cluster with HyperSwap and Metro Mirror.
Also available in: Chinese  
Articles 19 Aug 2013
Exploring the DWARF debug format information
This article helps you understand the DWARF debug file structure and explore the DWARF object files.
Also available in: Chinese  
Articles 12 Aug 2013
Building a two-node IBM GPFS cluster on IBM AIX
This article is a step-by-step guide for deploying a two-node IBM® General Parallel File System (IBM GPFS™) V3.5 cluster on IBM AIX® 7.1.
Also available in: Chinese  
Articles 01 Aug 2013
IBM AIX autostartup and shutdown scripts
Automatically starting up the required services when a system restarts can save you the task of logging in to the system to manually start those services. When shutting a system down, you can have scripts in place to shut down those services in a controlled manner. This article covers the different methods employed to start or stop your applications when a system is restarted or shut down.
Also available in: Chinese   Russian  
Articles 29 Jul 2013
Installing IBM AIX 7.1 on an Integrated Virtualization Manager LPAR
This tutorial explains to the readers in simple steps (and with an example) how to set up a virtual server within Integrated Virtualization Manager (IVM), and how to install IBM® AIX® 7.1 onto the virtual server. This allows users to economically use the available resources within their IVM.
Also available in: Chinese  
Tutorial 22 Jul 2013
Simplify and centralize IPSec management on AIX
Internet Protocol Security (IPSec) helps you secure your data, but implementing IPSec tunnels in a large enterprise with many systems can be a daunting task. In this article, learn to use the centralized IPSec management feature in AIX to manage IPSec configuration for large numbers of client machines. Examples show how to simplify and centralize management of a configuration using LDAP as a central repository.
Also available in: Chinese   Russian  
Articles 15 Jul 2013
IBM SAN switch upgrade method
In storage area network (SAN) environments, we need SAN switches with different hardware and firmware levels. Most of the time, we face requirements for upgrading or downgrading SAN switch firmware. This tutorial explains both the graphical and command-line interface (CLI) methods to perform this task.
Articles 15 Jul 2013
IBM AIX and Microsoft Active Directory integration with Kerberos and LDAP
The KRB5LDAP compound load module in IBM® AIX® allows user information to be pulled from Microsoft® Active Directory (AD) using Lightweight Directory Access Protocol (LDAP) and authentication against AD using Kerberos. This article explains the necessary steps to configure KRB5LDAP.
Also available in: Chinese  
Articles 11 Jul 2013
Enhance distributed development with IBM Rational Developer for AIX and Linux Version 9.0
IBM Rational Developer for AIX and Linux Version 9.0 allows you to use a single project to develop, build, test, debug, and performance tune your application across multiple systems at the same time. Mike Kucera describes the features that enable distributed development.
Articles 09 Jul 2013
Getting more done with less: Using scripts and utilities to run commands across all your IBM AIX servers quickly
System administrators are increasingly required to manage more servers, decreasing the amount of time they are able to dedicate to each server. Time-saving utilities are crucial in ensuring efficiency in managing these servers. Simple, serially run one-line Secure Shell (SSH) loops and parallel-run commands using utilities, such as dsh and parallel SSH, drastically improve efficiency, especially in large-enterprise environments.
Also available in: Chinese   Russian  
Articles 08 Jul 2013
VIOS shared storage pool and thin provisioning
I wondered why IBM® Power Systems™ does not have the snapshot and thin-provisioning features that can make the life of a system administrator much easier when there is a need to upgrade or maintain efficiency. Finally, I found it in Virtual I/O Server (VIOS) shared storage pool, which I have detailed in this article.
Also available in: Chinese  
Articles 03 Jul 2013
Get your IBM Power Systems environment to a supported level
Running unsupported software or system firmware in your IBM® Power Systems™ environment can pose a significant exposure to your business. Fortunately, getting your environment to a state where IBM can support it may be easier than you think. This article looks at the components you may need to upgrade. It also points you to further information to help you get started.
Also available in: Chinese   Russian  
Articles 01 Jul 2013
A hidden and dangerous side effect of tuning j2_inodeCacheSize and the memory DR operation
In this article, we reveal a hidden and dangerous side effect of tuning j2_inodeCacheSize and the memory dynamic reconfiguration (DR) operation. This harmful side effect might cause serious consequences including inode cache exhaustion, file system corruption, and system failure. We demonstrate and explain how it occurs and how to prevent it. We also introduce some methods to detect and fix such problems.
Also available in: Chinese  
Articles 24 Jun 2013
Controlling symbol visibility for shared libraries: Part 1 - Introduction to symbol visibility
This is the first one of our two-part series about symbol visibility. In this part, you may get to know the fundamental concept about symbol and symbol visibility, and ways for a programmer to make symbol visibility under control on IBM® AIX® that runs on the IBM POWER® platform. Further, this article details about symbol preemption to show the subtle difference between exported symbol and symbol that is exported but also protected.
Also available in: Chinese  
Articles 12 Jun 2013
Stack-based breadth-first search tree traversal
This article explains the traditional breadth-first search (BFS) that has drawbacks in terms of extra space required by the queue data structure. If a tree has multiple children and is a balanced tree, then the queue size would grow exponentially and could cause serious memory threats. The solution in this article provides a parallel approach for printing the tree in BFS fashion, where the queue data structure in not required at all. Instead, stack memory is used but memory consumption would be log(n) with base N, where N is the average children count per node and 'n' is the number of nodes in the tree.
Also available in: Chinese  
Articles 04 Jun 2013
Multi-disk management for IBM Systems Director VMControl: Part 3
IBM® Systems Director is a platform management solution that is used to manage physical and virtual systems. IBM Systems Director provides systems management personnel with a single pane of glass, helping reduce IT management complexity and cost. IBM Systems Director VMControl™ is an advanced plug-in installed on top of IBM Systems Director to provide the virtualization capabilities. This tutorial talks about the multi-disk support while deploying workload using the VMControl Representational State Transfer (REST) application programming interfaces (APIs) and command-line interface (CLI).
Also available in: Chinese  
Articles 28 May 2013
Considerations in software design for multi-core multiprocessor architectures
Today's chip multithreaded, multi-core, multiprocessor systems provide software designers a great opportunity to achieve faster and higher throughput. However, there are a few key design considerations, if ignored, could result in hard-to-find performance issues and scalability bottlenecks.These key design considerations are discussed in this article.
Also available in: Chinese   Russian  
Articles 20 May 2013
Multi-disk management for IBM Systems Director VMControl: Part 2
IBM Systems Director is a platform management solution that is used to manage physical and virtual systems. IBM Systems Director provides systems management personnel with a single pane of glass, helping reduce IT management complexity and cost. VMControl is a advanced plug-in installed on top of IBM Systems Director to provide the virtualization capabilities. This tutorial talks about the multi-disk management and revision control for capturing virtual appliances using the VMControl Representational State Transfer (REST) application programming interfaces (APIs) and command line interface (CLI).
Also available in: Chinese  
Articles 14 May 2013
PowerVM configuration and scaling with WebSphere Portal
This article describes a series of performance benchmarks that demonstrate the scaling properties of an IBM PowerVM® virtual machine running IBM WebSphere® Portal on the IBM AIX® operating system. Various PowerVM configuration settings are used to demonstrate how performance changes when CPU entitlements and virtual CPUs are changed.
Also available in: Chinese  
Articles 09 May 2013
Multi-disk management for IBM Systems Director VMControl: Part 1
IBM Systems Director is a platform management solution that is used to manage physical and virtual systems. IBM Systems Director provides systems management personnel with a single pane of glass, helping reduce IT management complexity and cost. IBM Systems Director VMControl™ is an advanced plug-in installed on top of IBM Systems Director to provide virtualization capabilities. This tutorial talks about multi-disk management for virtual server using the VMControl Representational State Transfer (REST) application programming interfaces (APIs) and command-line interface (CLI).
Also available in: Chinese  
Articles 06 May 2013
Shared Ethernet Adapter configuration with two networks
This tutorial describes how to configure two different networks using Virtual I/O Server (VIOS) with high availability, redundancy, and load sharing. With this architecture, VIOS and logical partitions (LPARs) can be accessed from two completely different networks and both networks can be used for different purposes.
Also available in: Chinese  
Articles 02 May 2013
Setting up the IBM AIX server as a router (static routing)
Routing is the process of moving a packet of data from source to destination. Static routing uses manually added routes whereas dynamic routing uses dynamic routes. This article explains how to set up an IBM® AIX® server as a router to communicate with private and public networks by using static routing.
Also available in: Chinese  
Articles 25 Apr 2013
The troubleshooter's guide for managing storage using IBM Systems Director
The purpose of this article is to document the troubleshooting methodologies and the best practices to be followed while managing the storage component and also provide the information about what needs to be verified in an entity, such as IBM® Systems Director, LSI, NetApp Eagle provider, and so on to overcome certain issues. In short, this article would serve as a one-stop reference for debugging storage management issues more efficiently.
Also available in: Chinese  
Articles 22 Apr 2013
Troubleshooting process hangs caused by JFS2 inode with an empty extended attribute entry
In this article, we reveal a special kind of inode that cannot be detected by the fsck command, and explain why it can cause process hangs and drop system performance. We also introduce some approaches to tackle such an issue.
Also available in: Chinese  
Articles 18 Apr 2013
IBM PowerHA SystemMirror cluster migration to IBM POWER7
This article provides the tips for migrating an IBM® PowerHA® SystemMirror cluster from IBM POWER6® to IBM POWER7® processor-based servers. This step-by-step guide describes how to migrate a high-availability (HA) cluster to POWER7, upgrade the cluster from IBM HACMP™ to PowerHA, and migrate shared cluster volume groups for fast disk takeover.
Also available in: Chinese  
Articles 04 Apr 2013
Using IBM Image Construction and Composition Tool
This article aims to provide common best practices when working with the IBM® Image Construction and Composition Tool® (ICCT) to design and build virtual appliances on IBM PowerVM® cloud providers.
Also available in: Chinese  
Articles 02 Apr 2013
IBM AIX device driver development
This tutorial illustrates the IBM® AIX® device driver framework and related application programming interfaces (APIs). Here, we shall discuss about the device switch structure, API to register device switch methods, major and minor number management, and moving data from kernel to user space.
Also available in: Chinese  
Tutorial 28 Mar 2013
Step-by-step guide to IBM Power Systems firmware update
IBM® Power Systems™ firmware update, which is often referred to as Change Licensed Internal Code (LIC) procedure, is usually performed on the managed systems from the Hardware Management Console (HMC). Firmware update includes the latest fixes and new features. We can use the Change Licensed Internal Code wizard from the HMC graphical user interface (GUI) to apply updates to the Licensed Internal Code (LIC) on the selected managed system. We can select multiple managed systems to be updated simultaneously. The wizard also allows us to view the current system information or perform advanced operations. This tutorial provides the step-by-step procedure for the IBM Power Systems firmware update from the HMC command line, and the HMC GUI and is targeted for system administrators. This step-by-step instructions can prepare the newbie for what needs to be done and how it could be done to stay on to the latest firmware level all the time. When you purchase a new hardware, the best practise is to upgrade all the firmware to the latest level.
Also available in: Chinese  
Tutorial 26 Mar 2013
Fine-grain network quality of service on IBM AIX 7.1 and Linux in a multi-tenant cloud environment
In a multi-tenant environment, typically tenants share a single infrastructure on which resources are logically partitioned and where the cloud administrators support the required provisioning to enable sharing of the infrastructure. In purview of the overall administrative tasks, maintenance of network quality of service (QoS) per tenant is a must have but a tedious task. This article demonstrates a powerful QoS mechanism available with the Linux® operating system that can help cloud administrators to effectively divide the total network bandwidth available on a centralized Linux server, hosting cloud applications among tenant client systems such as IBM® AIX®, Microsoft® Windows®, and Linux.
Also available in: Chinese  
Articles 21 Mar 2013
Simulating dropped TCP/IP packets on IBM AIX
Commercial software products are often developed and tested on local high-speed, high-capacity networks, where there is little congestion or packet loss. The network conditions in deployment environments may not be so ideal. Heavy congestion or hardware errors on networking equipment might result in lost packets, which can severely affect product performance. This article shows you how to use and customize a provided facility for simulating dropped Transmission Control Protocol/Internet Protocol (TCP/IP) packets on IBM® AIX® to allow you to anticipate how well a product will behave under less-than-ideal network conditions.
Also available in: Chinese  
Articles 15 Mar 2013
Enterprise maintenance strategy for IBM AIX running on IBM Power Systems servers
Systems maintenance plays an essential role within every enterprise to ensure supportability and system reliability in order to maximize the availability of the services that make up the technical landscape. With multiple components to consider (IBM® AIX®, database, application, and so on), juggling systems maintenance requirements with service level agreements (SLAs) can be challenging, but by aligning a schedule of activities, the frequency of planned outages can be reduced. This article looks at the importance of treating the service as an entity and with it, creating an enterprise maintenance strategy that maximizes system availability.
Also available in: Chinese  
Articles 11 Mar 2013
Automated environment setup tool for IBM Systems Director VMControl
IBM® Systems Director is a platform management solution that is used to manage physical and virtual systems. IBM Systems Director provides systems management personnel with a single pane of glass, helping to reduce IT management complexity and cost. IBM Systems Director VMControl™ is an advanced plug-in installed on top of IBM Systems Director to provide the virtualization capabilities. This article talks about a tool for automatic environment setup for IBM Systems Directors testing and development. The tool is designed to work for almost all the supported resource features, such as kernel-based virtual machine (KVM), IBM z/VM®, VMware, and IBM Power® Systems™ platforms.
Also available in: Chinese  
Articles 05 Mar 2013
Technical library using IBM AIX RAS infrastructure tracing services
This article explains how to use IBM AIX reliability, availability, and serviceability (RAS) infrastructure services to enable trace capability for kernel extension and device drivers. Mainly, the AIX infrastructure manages core error logging, component tracing, and dump facilities for kernel extension and device drivers. It provides the interface to register and control the level of tracing facilities for kernel extension and driver components. It also exemplifies the concepts through an example implementation and best practices to be followed to interface with the RAS infrastructure.
Also available in: Chinese  
Articles 01 Mar 2013
Subsystem Device Driver Path Control Module (SDDPCM) for IBM AIX
Subsystem Device Driver Path Control Module (SDDPCM) is used for implementing multipath configuration environment using IBM System Storage SAN Volume Controller (SVC), IBM Storwize V7000, and other IBM Storage products. It supports a storage-redundant configuration environment for a host system that is attached to storage devices. It provides enhanced data availability, dynamic input/output (I/O) load-balancing across multiple paths, and automatic path failover protection.
Also available in: Chinese  
Articles 25 Feb 2013
SOA integration with IBM CICS from IBM WebSphere Application Server on IBM AIX
IBM WebSphere and IBM CICS Transaction Gateway (CISCS TG) deployed to run on IBM AIX in local mode with the CICS ECI XA resource adapter, using the Internet Protocol Interconnectivity (IPIC) protocol for communication with CICS Transaction Server for IBM z/OS offers many benefits, especially in the operational management of the integrated environment with deployed Java Enterprise Edition (JEE) applications.
Articles 19 Feb 2013
Scripting IBM AIX LPAR builds from A to Z in an IBM PowerVM environment
In today's high demand and quickly changing IT environment, many system administrators are looking for areas where they can save time and automate tasks. Creating a logical partition (LPAR) creation is a common task that when manually done takes a significant amount of time. In other words, it is a perfect task to automate! This article covers the steps to create a LPAR from the command line and then show how this can be automated with a script.
Also available in: Chinese  
Articles 07 Feb 2013
IBM Systems Director VMControl resource lifecycle management: part 4
IBM Systems Director is a platform management solution that is used to manage physical and virtual systems in a multisystem environment. It supports various virtualization technologies and multiple operating systems across IBM and non-IBM platforms. IBM Systems Director VMControl is an advanced manager of IBM Systems Director, a free-to-own set of platform management tools. This tutorial is part of a series on VMControl resource lifecycle management. This tutorial explains about server system pool lifecycle using the VMControl Representational State Transfer (REST) application programming interfaces (APIs).
Also available in: Chinese  
Articles 04 Feb 2013
IBM AIX RAS – firmware-assisted and live dump facilities explained
The article explains advanced IBM® AIX® dump facilities built up to capture system dump robustly. More specifically, it discusses the various aspects of firmware-assisted and live dump facilities. It provides the details of live dump kernel service to reliability, availability, and serviceability (RAS) infrastructure and various options or turntables to be considered to capture the live dump for a component or driver data. It illustrates the live dump facilities with an example kernel extension.
Also available in: Chinese  
Articles 01 Feb 2013
IBM Systems Director VMControl resource lifecycle management: part 3
IBM Systems Director is a platform management solution that is used to manage physical and virtual systems in a multisystem environment. It supports various virtualization technologies and multiple operating systems across IBM and non-IBM platforms. IBM Systems Director VMControl is an advanced manager of IBM Systems Director, a free-to-own set of platform management tools. This tutorial is part of a series on VMControl resource lifecycle management. This tutorial explains the image deployment lifecycle using the VMControl Representational State Transfer (REST) application programming interfaces (APIs).
Also available in: Chinese  
Tutorial 29 Jan 2013
Configure SMI-S providers for storage
Storage Management Initiative Specification (SMI-S) is an industry standard developed by the Storage Networking Industry Association (SNIA) with which independent management software can manage storage devices (storage and switches) through a standard interface based on the Common Information Model (CIM) protocol.
Also available in: Chinese  
Articles 28 Jan 2013
IBM Systems Director VMControl resource lifecycle management: part 2
IBM Systems Director is a platform management solution that is used to manage physical and virtual systems in a multisystem environment. It supports various virtualization technologies and multiple operating systems across IBM and non-IBM platforms. IBM Systems Director VMControl is an advanced manager of IBM Systems Director, a free-to-own set of platform management tools. This tutorial is part of a series on VMControl resource lifecycle management. This tutorial explains the virtual appliance lifecycle using the VMControl Representational State Transfer (REST) application programming interfaces (APIs).
Also available in: Chinese  
Tutorial 25 Jan 2013
IBM PowerHA 7.1 heartbeat over SAN
This article describes the prerequisite configuration required, and the actual configuration to use IBM PowerHA 7.1 storage area network (SAN) heartbeat. In PowerHA 7.1, the disk heartbeat has been replaced by a SAN heartbeat, which should be included in a resilient PowerHA architecture.
Also available in: Chinese  
Articles 21 Jan 2013
IBM Systems Director VMControl resource lifecycle management: part 1
IBM Systems Director is a platform management solution that is used to manage physical and virtual systems in a multisystem environment. It supports various virtualization technologies and multiple operating systems across IBM and non-IBM platforms. IBM Systems Director VMControl™ is an advanced manager of IBM Systems Director, a free-to-own set of platform management tools. This tutorial is part of a series on VMControl resource lifecycle management. This tutorial explains the virtual server lifecycle using the VMControl Representational State Transfer (REST) application programming interfaces (APIs).
Also available in: Chinese  
Tutorial 17 Jan 2013
Versioned Workload Partitions
This article explains the requirements for moving to versioned Workload Partitions (versioned WPAR) as well as limitations and restrictions. It also explains the configurations of a versioned WPAR to allow it to run in an IBM AIX global environment.
Also available in: Chinese  
Articles 14 Jan 2013
The NIM cheat sheet
Have you ever had to install a large number of IBM AIX servers from scratch? Do you need a quick and easy way to create and store operating system backups? Would you like to know how to perform AIX operating system migrations on live servers quickly? Well, here is your complete cheat sheet for setting up and using the Network Installation Manager (NIM) tool in AIX. Learn how to set up the server and client components, perform a basic installation, use NIM to create mksysb backups, and perform alt_disk migrations over the network.
Also available in: Chinese  
Articles 07 Jan 2013
Shuffling disk data around
Data maintenance on disks is a common task for any system administrator. A quite frequent task in my experience is data movement. This may be due to hotspots on your disk, a quick fix is to move some logical volumes off to another disk to ease congestion. The migratelp command is your trusted friend in this situation. When you are experiencing a failing disk or you are migrating data from one disk to another disk, you can use the migratepv command or create a mirror copy, and you are not restricted to just one method. For original volume groups (VGs), when adding a disk to the VG, you may run into a factoring issue. However, by understanding the characteristics of the VG, the factoring can be changed. These common disk maintenance tasks are discussed with examples in this article.
Also available in: Chinese  
Articles 02 Jan 2013
Sharing physical volumes across logical partitions on IBM Power Systems servers
This article explains the process of sharing physical volumes (PVs) across multiple logical partitions (LPARs). This kind of environment is required for a cluster setup.
Also available in: Chinese  
Articles 24 Dec 2012
Interactive tool to run REST APIs of IBM Systems Director
This article covers the interactive tool to run Representational State Transfer (REST) application programming interfaces (APIs) of IBM Systems Director VMControl. This tool provides a command-line interface (CLI) interface to invoke REST APIs for IBM Systems Director VMControl.
Also available in: Chinese  
Articles 19 Dec 2012
POSIX and Olson time zone formats
This article helps you to understand various time zone formats, interpret the Portable Operating System Interface (POSIX) format, and understand the output of the zdump command with examples.
Articles 13 Dec 2012
Improve your productivity by using the debugger in Rational Developer for Power Systems Software
IBM Rational Developer for Power Systems Software features an integrated source-level debugger that helps you debug applications written in different languages and running on different platforms. The key feature of the debugger is that its user interface client connects remotely to a debugger engine running on a different machine. This article shows you how to use the debugger's core features, its advanced features, and its integration with the rest of Rational Developer for Power Systems and other IBM technology.
Articles 11 Dec 2012
What is that file?
There are many commands you can use on the IBM AIX operating system to get information about files. The ls -l command gives you some basics, such as the file name, its size, permissions, and the time the file was last modified. But you can find a lot more interesting and helpful information about files. This article shows you some of the commands that can give you the inside scoop about files, including what the files contain, what processes use them, when they were last accessed, and much more.
Also available in: Chinese  
Articles 06 Dec 2012
IBM SmartCloud Entry for IBM Power Systems
IBM SmartCloud Entry for IBM Power Systems is an entry-level private cloud offering from IBM for IBM POWER® processor-based systems. When the required software stack is installed and configured, the ability to deploy and manage virtual machines (VMs) becomes possible through a web front end. I recently attended the IBM SmartCloud Entry for Power Systems workshop in Sydney, and was impressed by what I saw. The following article is my first impression of the product, albeit with limited exposure to its full potential.
Also available in: Chinese  
Articles 06 Dec 2012
Exploring the Boost Graph Library
Get to know the Boost Graph Library, a generic graph library that helps C++ developers convert practical engineering problems into graph-theory problems.
Also available in: Chinese  
Articles 03 Dec 2012
ksh_timer
ksh_timer helps ksh script developers or administrators to find out quickly and with minimal change in their script, what functions or user-defined sections are time consuming. By default, ksh_timer will time the overall script and each function defined and used in the script. Users can define additional sections of the scripts they need to be timed.
Also available in: Chinese  
Articles 28 Nov 2012
Inline assembly - start from scratch
This article is for C/C++ programmers who use inline assembly and are working on the IBM® POWER® processor architecture. It presents two scenarios to introduce the basic usage and basic syntax of inline assembly for beginners. The article also poses intermediate-level questions and, by answering these, makes it clear how and why common mistakes can happen. Some tips are also included for coding practice.
Also available in: Chinese  
Articles 20 Nov 2012
Introduction to IBM Active Cloud Engine
This article provides an introduction to the new IBM Active Cloud Engine capability of the IBM Scale Out Network Attached Storage (SONAS). Active Cloud Engine provides a competitive edge to IBM network-attached storage (NAS) offerings.
Also available in: Chinese  
Articles 09 Nov 2012
VADeployer - a Java SWT REST client application
A Standard Widget Toolkit (SWT) Java desktop application was developed taking advantage of the flexibility and ease of use of the IBM Systems Director Representational State Transfer (REST) application programming interfaces (APIs). You can use this application to configure, at deployment time, each product section within a virtual appliance Open Virtualization Format (OVF) descriptor as well as memory and processor allocation settings for a new virtual server.
Also available in: Chinese  
Articles 01 Nov 2012
Integrating IBM WebSphere into CICS with CICS Transaction Gateway on IBM AIX
The integration of IBM WebSphere with IBM CICS Transaction Gateway (CICS TG) enables client J2EE applications to access existing programs on the CICS back-end system. This method describes integration in a particular way.
Articles 26 Oct 2012
Migrating to AIX 7.1 with nimadm
This article provides tips for migrating to AIX 7.1 using nimadm and general advice and guidance for ensuring a successful migration.
Articles 22 Oct 2012
LDAP user management with RSCT
This article describes how to implement high-availability Lightweight Directory Access Protocol (LDAP) user management for IBM® AIX® using Reliable System Cluster Technologies (RSCT). Contrary to the mainstream LDAP recommendations, the goal of this solution is to provide a LDAP registry for all users, including root. The high-availability implementation should guarantee the availability of the root user (and other system users), at all times.
Also available in: Chinese  
Articles 16 Oct 2012
CD/DVD on demand with LPARs
In many organizations, sample requests such as a CD mount or umount on logical partitions (LPARs) must be managed automatically without administrator rights by an events process. This article can help to automate this process.
Also available in: Chinese  
Articles 08 Oct 2012
Automated DB2 10 for Linux, UNIX, and Windows failover solution using shared disk storage
This paper describes a distinct configuration of an automated IBM DB2 for Linux, UNIX, and Windows software failover solution that uses shared disk storage.
Articles 04 Oct 2012
Using Graphviz to generate automated system diagrams
If you have created an architecture diagram of your system environment, you probably realize that these manually created diagrams are usually out-of-date the day after you create them. This article explains the basics of the Graphviz application and how you can write scripts that can automate the creation of diagrams so that you always have up-to-date and correct diagrams of your systems. Example scripts are provided that diagram the N-Port ID Virtualization (NPIV) and virtual Small Computer System Interface (VSCSI) configurations of an IBM POWER processor-based server.
Also available in: Chinese  
Articles 27 Sep 2012
IBM XL C/C++ installation on IBM AIX 7.1
IBM® XL C/C++ is a high-performance optimizing compiler designed to use IBM POWER® processors and enable the development of parallel applications that use the multi-core and vector features of these processors. This tutorial helps readers with a basic technical background information about the XL C/C++ V11 installation on the IBM AIX® 7.1 operating system.
Also available in: Chinese  
Articles 21 Sep 2012
FC adapter-based WPAR creation and Oracle database configuration
Workload Partitions (WPAR) is a licensed program product included with IBM® AIX® 6.1 and later versions. This article explains the concepts and configurations of a WPAR with Fibre Channel (FC) exported. Also, it describes the steps to install and configure both Oracle database and Oracle Automated Stress Test (OAST) workload inside the WPAR.
Also available in: Chinese  
Articles 12 Sep 2012
Learning the OpenMP framework with GCC
The Open Multiprocessing (OpenMP) framework is an extremely powerful specification that helps you harness the benefits of multiple cores from your C, C++, and Fortran applications. This article explains how to use the OpenMP features in your C++ code and provides examples that can help you get started with OpenMP.
Also available in: Chinese   Russian   Portuguese  
Articles 07 Sep 2012

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