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Achieving high performance on IBM AIX using Coherent Accelerator Processor Interface (CAPI)
This article describes the Coherent Accelerator Processor Interface (CAPI) Flash support on IBM AIX. CAPI technology has been used on AIX to accelerate I/O operations to IBM Flash storage. AIX CAPI Flash driver stack has been optimized into a monolithic driver model which further reduced the I/O code path length. CAPI Flash technology provides a superior performance advantage in terms of IOPS per processor when compared to the traditional Fibre Channel I/O. We also describe at a high level how a user can use CAPI-based flash devices on AIX.
Articles 24 Jan 2018
IPsec tunnel configuration between IBM AIX and Microsoft Windows, Part 3: IKEv2 IPsec tunnels between AIX 6.1 or later versions and Windows 2012
Your article abstract goes here. Put the main points and key phrases at the beginning of the abstract, because it will be truncated in search results. Make your abstract enticing yet succinct. Aim for three to five sentences that express why the reader would care about the content (motive) and what he or she can gain from reading the content (benefits).
Articles 04 Dec 2017
IPsec tunnel configuration between IBM AIX and Microsoft Windows, Part 2: IKEv1 IPsec tunnels between AIX 6.1 or later versions and Windows 2012
Your article abstract goes here. Put the main points and key phrases at the beginning of the abstract, because it will be truncated in search results. Make your abstract enticing yet succinct. Aim for three to five sentences that express why the reader would care about the content (motive) and what he or she can gain from reading the content (benefits).
Articles 01 Dec 2017
Resolving symbol information into meaningful function names in tprof
In scenerios where tprof utility fails to resolve the addresses of the symbols, instead reports the symbols in hexadecimal format. This makes perfomance analysis difficult, since the symbols would not have resolved into meaningful function names. This article explains the way in which users can translate the unresolved address in a tprof profile report to meaningful function address using gensyms and dbx commands.
Articles 30 Nov 2017
IPsec tunnel configuration between IBM AIX and Microsoft Windows, Part 1: Generating certificates in AIX and importing certificates to Windows for IKE IPsec tunnels
Your article abstract goes here. Put the main points and key phrases at the beginning of the abstract, because it will be truncated in search results. Make your abstract enticing yet succinct. Aim for three to five sentences that express why the reader would care about the content (motive) and what he or she can gain from reading the content (benefits).
Articles 29 Nov 2017
Monitor network bandwidth usage and analyze network traffic in the IBM AIX server using ProbeVue
This article helps users to monitor network bandwidth and analyze network traffic in an IBM AIX server using ProbeVue. This provides users with a near real time view of what is happening in their network for a user-specified time interval or when a user specified event occurs. This takes very less time to diagnose certain network issues compared to traditional tools such as IPTRACE and TCPDUMP. This is because ProbeVue provides only the data requested by the user instead of providing the entire data, which requires a lot of time to analyze and diagnose a specific problem.
Articles 28 Nov 2017
Performance improvement using IBM AIX flash cache
This article demonstrates how performance with IBM AIX flash can drastically improve read requests from a storage subsystem by running performance benchmark tests. The test team experimented using different performance benchmarks and measured the performance data to demonstrate the variation with and without AIX flash cache.
Articles 13 Nov 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   Japanese  
Articles 12 Sep 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
Configure an IPsec environment using the Kerberos authentication mechanism
Kerberos is an authentication mechanism used to authenticate a set of users by having different security realms and by exchanging ticket over a secured or non-secured environment. Internet Protocol Security (IPsec) is a security protocol used to establish a secured channel over interacting systems. The IPsec security protocol allows the use of Kerberos for user authentication and to have a secured communication channel established between two client systems. This article explains how we can use IPsec as a security protocol to communicate between two client systems and how we can configure IPsec with Kerberos authentication between these systems.
Articles 28 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
Updating the Olson time zone database on IBM AIX
This article helps users to understand how to update the Olson time zone database on IBM AIX whenever it is periodically updated with the latest time zone changes.
Articles 04 Jul 2017
A simplified approach to hardware upgrade using IBM Geographically Dispersed Resiliency for Power Systems
This article explains the advantages of using IBM Geographically Dispersed Resiliency for Power Systems for planned hardware upgrades followed by a detailed walk-through of the steps for performing the upgrade.
Articles 06 Jun 2017
IBM PowerHA/Cluster Aware AIX (CAA) tunables guide
This article explains about IBM PowerHA and Cluster Aware AIX (CAA) tunables, their default values, and the recommended values for the PowerHA cluster environment.
Articles 23 May 2017
Bidirectional supports for disaster recovery using IBM Geographically Dispersed Resiliency for Power Systems
This article demonstrates the working of bidirectional support for disaster recovery using the IBM Geographically Dispersed Resiliency for Power Systems solution, where two sites can handle the configuration in both directions.
Articles 11 May 2017
Preserving redundant VIOS configuration on production site with IBM Geographically Dispersed Resiliency solution
IBM Geographically Dispersed Resiliency for Power Systems is an innovative disaster recovery (DR) solution to recover virtual machines (VMs). In enterprise customer environments, multipathing I/O with dual Virtual I/O Server (VIOS) configuration is widely employed for redundancy. This article suggests a procedure to perform disaster recovery to move the VMs that have dual VIOS setup on host at production or active site to a backup site with a single VIOS setup in the backup hosts. The article also explains the procedure to preserve the original dual VIOS configuration after the VMs move back to the previous site again.
Articles 12 Apr 2017
Implementing server-side caching of storage data in an IBM PowerHA cluster environment
This article explains the implementation of server-side caching of storage data in an IBM PowerHA cluster environment. This can help in reducing average latency of the workloads and achieving better write throughput by offloading requests from a storage area network (SAN). This helps in effectively serving many clients and hosts.
Articles 07 Apr 2017
Developing applications using libusb in IBM AIX
libusb is an open source library that allows you to develop user space drivers (applications) for USB devices. This article provides detailed steps on developing applications using libusb on IBM AIX. Users can write driver software on AIX for their USB devices to communicate with them. This article gives detailed description on installation and configuration of libusb on AIX, enumeration of libusb devices, and how to develop applications using libusb APIs.
Articles 14 Mar 2017
AHAFS events support for adding and removing USB devices in IBM AIX
Hot plugging a device in a system means the device is discovered and configured by the system without reboot or without manual intervention. The existing USB infrastructure in IBM AIX does not support discovering devices on hotplug. A configuration manager command must be invoked manually to discover the new USB devices attached to the AIX system. This article explains the hotplug infrastructure provided for USB devices in AIX and how it can be used by the applications.
Articles 14 Mar 2017
Disaster Recovery as a Service (DRaaS) offering using IBM Geographically Dispersed Resiliency Solution for Power Systems
This article explains about cloud supported recovery model for disaster recovery management in which two different customers can share the same IBM site recovery management system through subscription or service offering. This can be supported with IBM Geographically Dispersed Resiliency for Power Systems.
Articles 27 Feb 2017
Configuration of Enterprise Pool for Capacity on Demand with IBM Geographically Dispersed Resiliency for Power Systems solution
This article explains about the newly released disaster recovery solution, IBM Geographically Disperse Resiliency for Power Systems, and explains how to use it seamlessly with Power Enterprise Pools. This article explains the concepts involved in capacity on demand and steps involved in configuring the same from the HMC GUI and command line.
Articles 31 Jan 2017
How to safeguard the KSYS node in IBM Geographically Dispersed Resiliency for Power systems?
This article explains how to safeguard the KSYS node (controller system node) that manages the Geographically Dispersed Resiliency environment. IBM Geographically Dispersed Resiliency for Power Systems is a disaster recovery solution that is easy to deploy and provides an automated process to recover the production site virtual machines. KSYS node is a logical partition with the IBM AIX operating system and the Geographically Dispersed Resiliency solution installed on it. This KSYS node can monitor the configured environment and handle the respective virtual machine under that environment during disaster recovery.
Articles 31 Jan 2017
Performance improvements for IBM AIX FC and FCoE device driver stacks
The Fibre Channel device driver stack on IBM AIX enables multiple I/O queues to issue I/O requests in parallel across the queues. With this multiple I/O queue support, there is a significant improvement in the number of IOPS for I/O requests of smaller block sizes. The article discusses the performance improvements and results for AIX native and NPIV configurations for 16 Gb FC (Feature Code: EN0A) and 10 Gb FCoE (Feature Code: EN0H) host bus adapters (HBAs).
Articles 06 Jan 2017
Introducing IBM PowerSC 1.1.5
IBM PowerSC provides a security and compliance solution optimized for virtualized environments on IBM Power Systems running PowerVM and AIX. The newest release makes managing security compliance easier than ever with an improved user interface. Try it today.
Articles 04 Nov 2016
Enabling Reliability Scalability Cluster Technology (RSCT) as clustering software for IBM PowerVM NovaLink
This article explains the Reliability Scalability Cluster Technology (RSCT) support to establish the formation of a management domain between IBM PowerVM NovaLink and its logical partitions (LPARs) automatically and to ensure that the communication between PowerVM NovaLink and the LPAR is possible over IPv6 link-local addresses using an OpenStack community driver on PowerVM NovaLink.
Articles 17 Oct 2016
Open source cloud automation for IBM AIX
IBM is proactively working with AIX administrators to identify and prioritize Chef content and continue to strengthen the open source ecosystem for AIX. Read this article to learn more.
Articles 11 Oct 2016
Open source cloud automation for IBM AIX
IBM is proactively working with AIX administrators to identify and prioritize Chef content and continue to strengthen the open source ecosystem for AIX. Read this article to learn more.
Articles 11 Oct 2016
Hitachi TrueCopy mirroring with IBM PowerHA SystemMirror
This article explains the steps to configure Hitachi Storage system mirroring and IBM® PowerHA® SystemMirror® to monitor and manage Hitachi disks. In case of a disaster scenario such as fire, earthquake, and so on, the configured PowerHA SystemMirror resource can be moved from the disaster location to some other backup location thereby minimizing the loss of data and business application's downtime.
Articles 23 Sep 2016
Gaining better control in directing Live Partition Mobility (LPM) resource consumption
LPM is being increasingly used by system administrators in order to reduce operational downtime. For running Live Partition Mobility (LPM) with operational efficiency, we should consider the network that is going to route the traffic as well as the CPU cost on the mover service partition (MSP). The objective of this article is to demonstrate careful selection of resources during LPM operation, so that an administrator can enjoy better control over LPM traffic. This also brings in optimal performance and isolation of heavy LPM traffic from other workloads.
Articles 30 Jun 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
Automatic Repository Disk Replacement (ARR) in an IBM PowerHA cluster
This article explains the Automatic Repository Disk Replacement (ARR) feature of IBM® PowerHA® SystemMirror®. This article can help customers to configure backup repositories for automatic repository update. The PowerHA SystemMirror ARR feature helps to prevent a cluster from moving to the restricted mode in case a cluster repository disk is inaccessible or failed, ensuring that the cluster always remains in the stable state.
Articles 02 Mar 2016
IBM Cognos integration with Sterling Selling and Fulfillment Suite on Linux
This article reviews the necessary steps to integrate IBM Cognos 10 and IBM Sterling Selling and Fulfilment Suite 9 on Linux. Before you begin, it is recommended that you have an understanding of both IBM Cognos and Sterling Selling and Fulfillment Suite.
Also available in: Chinese  
Articles 14 Jan 2016
Configuration and integration of IBM System Storage SVC PPRC with IBM PowerHA using CLI
This article provides detailed steps for the configuration of IBM® System Storage® SAN Volume Controller (SVC) with Peer-to-Peer Remote Copy (PPRC) and integrating it with IBM PowerHA®. It briefs about the SVC configuration with IBM PowerHA to provide PPRC technology for faster failover of data. SVC is block storage which does virtualization using Fiber Channel storage area network (SAN).
Articles 22 Dec 2015
Installing and using IBM PowerVP and IBM AIX
This article describes how to install and use IBM PowerVP on an IBM AIX environment to monitor your IBM POWER8 and IBM POWER7 processor-based systems. You can also learn how to download, install, and configure PowerVP on AIX. New features in the latest version of PowerVP are also introduced and discussed in this article.
Also available in: Chinese  
Articles 18 Aug 2015
Integration of Microsoft Windows Active Directory server as a pass-through authentication server to IBM Tivoli Directory Server
This article explains about configuring Microsoft Windowsas a pass-through authentication server for IBM Tivoli Director Server Lightweight Directory Access Protocol (LDAP) server. The IBM AIX clients are mapped to the AIX LDAP server and the Windows clients are mapped to the Windows Active Directory (AD) server. But, when the user logs in to the AIX client, the user credentials get validated at the Windows AD server for getting login access to the AIX clients. This article provides the configuration steps in detail.
Also available in: Russian  
Articles 10 Jul 2015
Understanding storage framework disk fencing in IBM PowerHA SystemMirror 7.1
This article introduces a new feature of IBM® PowerHA® SystemMirror® 7.1, the storage framework disk fencing, which can shut off disk write access from IBM AIX® Small Computer System Interface (SCSI) disk driver layer, and help to prevent data corruption of inadvertent disk access.
Also available in: Russian  
Articles 22 Jan 2015
Using Storix
Recovering or building new machines running AIX is a straightforward process when you use Storix.
Also available in: Chinese  
Articles 16 Jan 2015
Moving IP address from one Ethernet to another
There will be times when you have to move an Ethernet IP address to another Ethernet. The first Ethernet may have gone bad and you have to move its IP address to another or may be you are moving from 1 GB Ethernet to a new 10 GB Ethernet. Whatever the reason is, this article provides you the steps to move the IP address from one Ethernet to another. My intention in this article is to make you aware that not only do you have to move the IP address to the new Ethernet but you also have to move all the routes as well. If the routes are missing on the new Ethernet you could run into problems and you may not know what the routes used to be so you can add them. I will show you how to create all the routes on the new Ethernet.
Articles 24 Dec 2014
IBM XL compiler hardware transactional memory built-in functions for IBM AIX on IBM POWER8 processor-based systems
Transactional memory is a hot topic in parallel programming and many software implementations have been developed, but solutions based on hardware transactional memory have superior performance. IBM is leading the way with its implementations of transactional memory on its hardware platform, first on IBM Blue Gene and IBM z/OS, then recently with IBM AIX support of hardware transactional memory on the POWER8 platform. This article introduces the IBM XL compiler hardware transactional memory built-in functions, including its installation and configuration with examples using XL C++ and XL Fortran.
Articles 18 Nov 2014
Controlling symbol visibility for shared libraries: Part 2 - Advanced knowledge with IBM XL C/C++ V13 compiler
This is the second article of our two-part series about symbol visibility. This article demonstrates more methods on visibility setting and resolution using the IBM® XL C/C++ V13 compiler. The article also introduces and explains some of the linking, assembly, and tooling facilities.
Also available in: Russian  
Articles 09 Sep 2014
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 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.
Also available in: Chinese  
Tutorial 19 Jun 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.
Also available in: Russian  
Articles 19 Jun 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.
Also available in: Russian  
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.
Also available in: Russian  
Articles 11 Apr 2014
Automatic discovery and HyperSwap configuration tool for IBM Power HA SystemMirror for AIX
The IBM® HyperSwap® feature in IBM PowerHA® SystemMirror® provides continuous storage availability in a multisite PowerHA cluster. It gives the advantage of planned and unplanned maintenance and migration of storage. To achieve HyperSwap configuration across sites, administrators need to configure Peer-to-Peer Remote Copy (PPRC) Metro Mirror between pairs and need to enable the HyperSwap feature for each of the disks. This involves collecting the logical unit number (LUN) and logical subsystem (LSS) information of the shared disks from the cluster nodes, and this is a time-consuming process. This article describes the scripts that can perform the HyperSwap configuration automatically.
Articles 11 Apr 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.
Also available in: Russian  
Articles 24 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.
Also available in: Russian  
Articles 20 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
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
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 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.
Tutorial 19 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   Russian  
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.
Tutorial 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
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  
Tutorial 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
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
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.
Tutorial 15 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
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
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 2: Multi-disk management for capturing a virtual appliance and revision control
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  
Tutorial 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: Multi-disk management for virtual server using 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 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  
Tutorial 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  
Tutorial 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  
Articles 28 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
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
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  
Tutorial 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
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
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
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