Performance Monitor Operations; Overview Of Performance Monitor; Data Collected By Performance Monitor; Short-Range Monitoring - HPE XP7 User Manual

2 Performance Monitor operations

This chapter describes performance monitoring and provides instructions for conducting
performance monitoring operations using Performance Monitor.

Overview of Performance Monitor

Performance Monitor enables you to monitor your XP7 Storage system and collect detailed usage
and performance statistics. You can view the data in lists and on graphs to identify changes in
usage rates and workloads, analyze trends in disk I/O, and detect peak I/O times. For example,
if there is a decrease in performance, such as delayed host response times, you can use
Performance Monitor to discover the reason for the decrease and determine the actions to take
to improve performance.
Performance Monitor collects data about storage system resources such as drives, volumes,
and microprocessors as well as statistics about front-end (host I/O) and back-end (drive I/O)
workloads. You can perform both short-range monitoring and long-range monitoring. For
long-range monitoring, data is collected constantly. For short-range monitoring, the data is
collected when the Monitoring Switch is set to Enable, and you specify when and how often the
data is collected. Using the Performance Monitor data, you can manage and fine-tune the
performance of your storage system using the performance management software products for
the system.
"Data collected by Performance Monitor" (page 9)
"Short-range monitoring" (page 9)
"Long-range monitoring" (page 10)
"Performance Monitor data graphs" (page 11)
"Export Tool for Performance Monitor" (page 11)

Data collected by Performance Monitor

Performance Monitor allows you to collect the performance and usage statistics for the XP7
Storage system. All statistics are available for short-range monitoring. Most of the storage system
usage statistics are available for long-range monitoring. For details about the performance and
usage statistics, see

Short-range monitoring

When you perform short-range monitoring of the storage system, you control when the statistics
are collected (in real time or during a specified period of time) and how often the statistics are
collected (from once per minute to once every 15 minutes). Short-range monitoring occurs in
parallel with and does not affect long-range monitoring activities. All performance and usage
statistics are available for short-range monitoring.
"Monitoring data" (page 29).
Overview of Performance Monitor 9