A customer has 5 older POWER5 systems and they want to consolidate them onto a POWER6 system. What information is important to analyze when deciding how to design the new machine using the System Planning Tool？（）

• A、 vmstat and iostat data from the older machines
• B、 The number of CPUs that were installed in the original machines
• C、 Data from Workload Estimator （WLE） and IBM Performance Management （PM）
• D、 Performance data that is collected from the new system after it has been put into production