Sonnet Technologies Fusion RAID Configuration Tool and Utilities Operation Manual - Manual (Page 59)

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2.0 Drive Performance Testing
The ATTO Configuration Tool’s drive performance testing feature
records the performance level of a drive in a RAID group under an I/O
(input/output) load generated by a host application on your computer.
The information can be used to compare the performance of each drive
relative to others.
The Configuration Tool’s performance test application measures
the data transfer rates in Megabytes per second (MB/sec.) which
elapse from the time the start button is clicked until the stop
button is clicked. Drive performance can be measured for any
combination of single drives within a RAID group or across
multiple RAID groups, or for all the drives in a selected RAID
group.
Note: The performance test can only be performed on drives which
belong to a RAID group.
The Drive Performance dialog box displays individual statistics
for each drive selected. After you start the I/O load application,
the collection of these statistics begins when the
Start button is
pressed and continues until the Stop button is pressed. You may
press the Reset button and restart a test at any time.
The Configuration Tool application can be closed after starting
the performance test and re-opened to show the statistics from
the most recent test.
1. Start the I/O-generating application on your computer.
2. Select the Sonnet RAID controller from the Device Listing
pane.
3. Select the RAID tab in the right pane.
4. Select the drives to be tested:
• Select individual drives from the Attached Drives pane.
• Select a single RAID group in the Groups pane.
5. Select RAID Management > Performance from the
application menu.
6. The Performance dialog box displays. See Figure 35 on
page 54.
7. Click the Start button.
8. Click the Stop button to halt monitoring.
Click the Reset button at any time to reset the performance
values to zero.
You can close the Performance box while monitoring is
in progress, and then open it later to see the performance
results.
9. Stop the I/O any time after you have stopped the
performance test.