HP StorageWorks P9000 Performance Advisor Software v5.3 User and Troubleshooting Guide (T1789-96322, August 2011)

13 Using Performance Estimator for XP disk
arrays
This chapter discusses the following topics:
• “Introduction” on page 345
• “Disk types supported for performance estimation” on page 346
• “Understanding PET data” on page 346
• “Estimating performance for XP24000 or XP12000 type of array” on page 346
Introduction
P9000 Performance Advisor enables you to determine the optimal performance of your XP24000
and XP12000 Disk Arrays after configuration collection is complete for these XP disk arrays. It provides
a framework called the Performance Estimator for estimating their performance.
Performance Estimator focuses on the RAID groups, instead of the LDEVs or the LUNs. It helps you to
estimate the disk capacity and the RAID group configuration that the XP disk array might require for
managing a particular workload. The estimation is based on the RAID groups and predefined workloads
that you can select for the XP disk array. The subsystem configuration parameters can be rapidly
entered and the results are accurate to within 20%.
CAUTION:
The numbers displayed are only an estimate. The results shown are based on readings taken in a
controlled environment. HP cannot guarantee the results in your data center.
IMPORTANT:
The Performance Estimator does not support the following type of arrays:
• P9000 disk arrays
• XP disk arrays, such as the XP20000, XP10000, XP1024/128, XP48, and SVS200
Supported disk types for performance estimation
The following table lists the XP disk arrays and the disk types they support.
Table 16 Disk types supported for performance estimation
Supported disk typeArray type
15K RPM, 10k RPMXP24000
HP StorageWorks P9000 Performance Advisor Software User Guide 345