HP 3PAR Management Console 4.5.1 Software User Guide

Creating a Physical Disks Report
Using the Create New Report wizard, you can generate a report for the following types of data:
• I/O Time and Size Distribution – Shows the I/O access rate and distribution of data for a
specific physical disk.
• Space – Displays the historical space data reports for physical disks.
• Performance Statistics – Displays historical performance data.
Once you select the type of report you want to generate, a default report Name and Description
appears to the right side of the page. You can keep the default text or provide your own.
Creating a Physical Disk IO Time and Size Distribution Report
The Physical Disk IO Time and Size Distribution report displays two charts: I/O Time and I/O Size
for access counts over a time interval or at a specified time.
The I/O Time report displays the read, write, or combined read and write access count for service
times within the specified interval. Each service time is shown in a different color on the same chart.
The X-axis (category) represents time, and the Y-axis (value) indicates the access count.
The I/O Size report displays the read, write, or combined read and write access count for the I/O
sizes within the selected range. Each I/O size is shown in a different color on the same chart. The
X-axis (category) represents time, and the Y-axis (value) indicates the access count. A table below
the charts lists the access count for services times and I/O sizes for each physical disk.
The table below the charts lists the access count for service times and I/O sizes at time increments
within the selected time interval. For values at a specified time chart types, the table might also
display the port node, port slot, port number, device type, and disk speed (in thousands of RPMs).
NOTE: The Speed number does not represent a rotational speed for the drives without spinning
media (SSDs). It is meant as a rough estimation of the performance difference between the drive
and the other drives in the system. For FC and NL drives, the number corresponds to both a
performance measure and actual rotational speed. For an SSD drive, the number is to be treated
as relative performance benchmark that takes into account in I/O per second, bandwidth, and
the access time.
Physical Disk I/O Time and I/O Size report for values over a time interval:
Creating Reports 379