Disk Activity Panel
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The Disk Activity panel shows information on disk usage: Activity Guages
Least Space
Data flows between the Memory panel and the Disk Activity panel
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Alarms
Spotlight is powerful diagnostic and problem-resolution tool for Unix and Linux operating systems. Its unique user interface provides you with an intuitive, visual representation of the activity on your host machine.
For information on Spotlight on Unix, see these sections
| Section |
Description |
|---|---|
| Background Information |
Introductory material to Spotlight on Unix. |
| Connect to a Unix System | Create / Modify / Delete connections to Unix systems. |
| Home Page | The Spotlight home page shows the flow of information and commands between various sub-components and the size and status of internal resources such as processes, disk files and memory structures. |
| Alarms |
Spotlight alerts you to problems with your system by issuing an alarm. You can configure Spotlight in the level of severity that constitutes an alarm, to disable an alarm, and the actions Spotlight takes on raising the alarm. |
| Drilldowns | When you have isolated a problem, you can display a drilldown page, whose charts and tables provide a detailed breakdown of the underlying statistics. |
| View | Options | Customize Spotlight. |
| Troubleshooting | Solve problems using Spotlight. |
For information on using Spotlight applications See
Spotlight Alarms
Spotlight alerts you to problems with your system by issuing an alarm. You can configure Spotlight in the level of severity that constitutes an alarm, to disable an alarm, and the actions Spotlight takes on raising the alarm.
When an alarm is raised Spotlight performs one or more of the following actions:
- Changes the color or intensity of relevant components.
- Gives audible warnings.
- Sends email notifications.
Actions you can take on an alarm being raised include:
- View details of the statistics that caused the alarm in a Spotlight drilldown page. Spotlight Drilldowns
- View the Spotlight online help.
- View details of the alarm in the Spotlight Alarm Log drilldown.
- Snooze the alarm.
- Save the alarm details.
- Filter the list of alarms.
Following are the alarms specific to Spotlight.
- Blocked Process Alarm
- Input Error Packets Flow Alarm
- Output Error Packets Flow Alarm
- Page In Alarm
- Page Out Alarm
- Percentage Busy Alarm (Most Active Disk)
- Swap Space Alarm
- Swap In Flow Alarm
- Swap Out Flow Alarm
- Used Percentage Alarm
- Zombie Processes Alarm
Blocked Process Alarm
The Blocked Processes button in the CPU panel shows the number of processes waiting on information to become available in memory.
Processes can also become blocked when they are waiting for:
- disk I/O completion,
- network I/O completion, or
- a shared resource.
A high level of blocked processes may indicate an under-configured machine.
The type of alarm that is activated is determined by the number of blocked processes waiting on information.