Disk Page
The Disk page contains several charts.
To open the Disk page
- Select the Spotlight on Unix connection in the Spotlight Browser.
-
Click Activity Summary | Disk.
To view charts on the Disk page
Right-click the Disk page and select View as Chart.
Notes:
- Every chart has a legend (list of symbols) to its right that describes the various series (line graphs) on the chart.
- Click an item in the legend to highlight its series (line) in the chart. Click a second time to return the series to its normal appearance.
- Move the mouse pointer over an item in the legend to view the current value for that series within the chart.
| Chart | Description |
|---|---|
| Disk Reads | The Disk Reads chart shows the rate at which data is being read off each disk. |
| Service Time | The Service Time chart shows the sustained service time for all disks on the machine you are diagnosing. If the sustained service time of any of your disks exceeds 50 milliseconds, move your data onto the under-utilized disks. |
| Disk Writes | The Disk Writes chart shows the rate at which data is being written to each disk. |
| Queue Length | The Queue Length chart shows the average number of write operations waiting to be completed for each disk. |
| Wait Time | The Wait Time chart shows the amount of time that the queue for each disk is not empty. The time is expressed as a percentage of total time. |
| Busy | The Busy chart shows the amount of time each disk spends processing its transactions. The time is expressed as a percentage of total time. |
To view the Disk page as a table
Right-click the Disk page and select View as Grid.