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AIX tech tip: Userproof your scripts, or else…

May 19, 2015 by Anthony English

It must be the techie in me, but I don’t like to make arrangements to meet someone without having a backup plan. What if they don’t make it on time? What if I don’t? I know what you’re thinking: call their mobile. But do I have their mobile number handy? Will we have coverage? Will […]

AIX tech tip: a tribute to AIX devices

April 16, 2015 by Anthony English

When you have a device connected to AIX, such as a disk or a tape drive, you can discover it using cfgmgr. As you’d expect, it will have the default parameters that are used for the device driver. Sometimes you’ll want to change these parameters – usually to allow you to tune the device for […]

How to use the SVC/Storwize CLI

March 31, 2015 by Glenn Robinson

Over the last five years, I have worked with both SVC and the Storwize Vxxxx family of products with IBM i and AIX on Power Systems. SVC and Storwize share the same software stack and GUI. There are some functions which are only available in SVC but, predominantly, the configuration and management is the same. […]

AIX tech tip: How to scan new devices with a single command

March 30, 2015 by Anthony English

There are things I really love about virtualisation for Power Systems. I probably appreciate some things more than other people do because I got to see how things used to work many years ago. A combination of physical and virtual enhancements has made life a lot easier than it used to be. I remember when […]

Masterclass: advanced vSCSI disk monitoring (includes scripts)

January 19, 2015 by Glenn Robinson

In my previous article, I showed how you can use nmon in VIOS to display the performance statistics of hdisks that are mapped to client LPARs. This is achieved by creating a file which nmon reads and then displays the relevant performance data. The script I used required that the virtual target devices (VTDs) mapped […]

Masterclass: how to monitor VIOS vSCSI disk performance

December 2, 2014 by Glenn Robinson

In my previous article I showed how you can use nmon in VIOS to display the performance statistics of hdisks that are mapped to client LPARs. This is achieved by creating a file which nmon reads and then displays the relevant performance data. Let’s look at a script I created to automatically generate the file […]

Is the new HMC interface enhanced or not?

November 4, 2014 by Steve Bradshaw

IBM has rather quietly brought out a new interface to its Hardware Management Console (HMC). This became an option in V8R8.1 Service Pack1 of the HMC. IBM has called it the enhanced interface and you will have an option to select it at log in. Don’t worry, you’ll know it when you see it. Before […]

AIX tech tip: which HMC does this LPAR belong to?

October 21, 2014 by Anthony English

In a large Power environment where you have multiple Power Systems and perhaps hundreds of LPARs, there may well be multiple Hardware Management Consoles. When the environment is spread across several sites, it can be a challenge even identifying which HMC to log onto to manage a particular LPAR. I recently had this situation. I […]

Time-saving tips for AIX device configuration

August 31, 2014 by Anthony English

Time-saving tips for AIX device configuration

When you have a one-off command to run on AIX, you just type it in. If you have to do it hundreds of times, you are better off if you script it. But what if the scripting still isn’t fast enough? I recently had to remove hundreds of virtual SCSI (vSCSI) devices from a Virtual […]

Masterclass: VIO Server networking tips and techniques

August 15, 2014 by Glenn Robinson

Over the past few years, I have picked up a number of tips and techniques to help when working with LPARs on Power Systems that use VIOS for networking. VIOS can provide highly performant, resilient and redundant networking capabilities to IBM i, AIX and Linux LPARs. While customers are comfortable with VIOS networking capabilities once […]

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