IBM i > TIPS & TECHNIQUES > SYSTEMS MANAGEMENT

Analyzing Disk Watcher Data

Knowing how to collect and analyze your performance data can help improve your system’s performance


V6R1 brings a major new interface for managing IBM* i5/OS*, IBM Systems Director Navigator for i5/OS. This browser-based interface does much of what the System i* Navigator did, plus more. One major new function found only within the IBM Systems Director Navigator for i5/OS is the performance task, which contains many known ways to manage i5/OS system performance, such as active jobs, system status and disk status. However, IBM has also added major new capabilities for working with i5/OS performance data, including Collection Services, Job Watcher and Disk Watcher collections.

 

The Disk Watcher performance-data collector was introduced in 2007 via PTFs for V5R3 and V5R4. The article “A New Way to Look at Disk Performance” details the Disk Watcher performance-data collector. The Disk Watcher data-collection capabilities are now included with V6R1.

V6R1 offers a GUI for the Disk Watcher data collector and another GUI for analyzing Disk Watcher data. These features are shipped as part of the V6R1 Performance Tools for i5/OS licensed program product (5761-PT1). They’re included with the Manager feature at no additional cost. If you have the PT1 Manager feature installed on your system, the Disk Watcher options will automatically appear on the V6R1 IBM Systems Director Navigator for i5/OS panels.

With the PT1 Manager feature installed, you’ll see three major areas where you can work with Disk Watcher collections in the browser interface (see Figure 1).

First, you can manage your Disk Watcher collections through the Collections task. This lets you see all of the various performance collections on your system along with their attributes.

Second, through the Show All Performance Tasks button, you can define, start and stop Disk Watcher collections. Basically, this provides a GUI to create Disk Watcher definitions and the capability to start and end Disk Watcher collections.

Finally, through the Investigate Data task, you can view and analyze Disk Watcher data in chart and table form. This article won’t explain further how to collect Disk Watcher data; rather, it focuses on the features available to analyze Disk Watcher data with the V6R1 IBM Systems Director Navigator for i5/OS.

 

Dawn May is an IBM i consultant. She owns Dawn May Consulting, LLC in the Greater Boston area.


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IBM i > TIPS & TECHNIQUES > SYSTEMS MANAGEMENT

Analyzing Disk Watcher Data

Knowing how to collect and analyze your performance data can help improve your system’s performance

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