## About Diagnostic Tests

You use diagnostic tests to verify the operation of all system components. You can run all diagnostic tests from the graphical user interface.

Topological views depict system devices graphically as icons or photographs. Using a Topology view, you can select specific subtests and test options for depicted devices. The Test from Topology view displays tests for connected ports, but not for host/HBAs.

The Test from List view lists system devices and their associated tests. In addition, Test from List displays all available host/HBA tests, not just those for connected ports.

Using Test from List, you can do the following:

- Select options for a specific device.
- Specify the number of passes each test will run.

Note -

The monitoring status of devices and links appears both in the Test from Topology view and in the Test from List menu.

You can use Test Manager to track and control the progress of the user-selected tests. The Test Output view enables you to view test output for active and completed tests.

### Related Topics

- Running Tests From a Topology View
- Running Tests From a Device List
- Reference: Diagnostic Test Options
- Managing Diagnostic Tests
- Setting Test Defaults