Objective

The Extended Workload Analysis (EWA) provides the customer with complete and detailed documentation of all service classes and resource groups and an assessment if they reached their intended goals, suggestions for improvements, and the expected performance effects of the suggestions. Additionally, we create an overview of the defined Capacity Limits and determine whether these can be reached or when. We also determine whether the Capacity Limits actually led to real savings and which WLM groups were involved to what portion during peak processing.
The documented results are well suited as the basis for discussing further performance decisions.

Approach

During the EWA, we perform the following activities:

• Compile a management summary
• Create of technical suggestions to optimize the WLM goals
• Evaluate the usage and application of resource groups and suggest any needed improvements
• Verify the usage of report classes and suggest any necessary improvements
• Evaluate the defined Capacity Limits and suggest any necessary improvements
• Check the peak time load of the WLM classes and suggest any necessary improvements
• Appraise the existing optimization potential
• Test the installation with zPrice Manager if desired

With the following information provided, we perform a significant amount of the activities off-site:

• Sysplex summaries
• SMF72 records, preferably from the last 3 accounting months
• SCRT reports belonging to the SMF72 records
• SMF30 records, SMF70 records or SMF89 records for a very limited time frame (only if needed)

Our specialists analyze the SMF information with our zPrice Manager and zWorkload Reporter and create the comprehensive documentation. We discuss the results with you and detail our procedural methods and suggestions. After the implementation, we perform two subsequent measurements in order to recommend more adjustments if needed.