Manage Your Server: Disk I/O Viewer

You can use this option to view reports of disk I/O tests which were performed earlier.

If no tests were run yet, there will be no reports to show.

Figure 1. Manage Your Server. No reports exist yet.

First run the performance monitor, then you will be able to choose a report to display.

Figure 2. Manage Your Server. Choose report.

Finally, you can view the generated report.
Notice how you can hover with the mouse over a point on the graph and get the actual numbers for that time.

Figure 3. Manage Your Server. Generated report example.