Test Selection

There is a SunVTS test for most hardware devices on Sun systems.

When you start SunVTS, the SunVTS kernel probes the system devices. The results of this probe are displayed on the SunVTS interface where you are presented with list of devices to select for testing. Tests that are not pertinent to the configuration of your system are not listed.

Selecting Test Groups and Individual Tests

You can select entire test groups or individual tests. The test mode and tests that you choose to run depend on your desired test strategy.

For example, if you are using SunVTS to troubleshoot intermittent SCSI bus errors you might choose to test the entire SCSI group in Functional Test mode to thoroughly test the whole subsystem. Then you might select specific SCSI devices to see which device reproduces the error.

In another example, you might want to validate a newly installed system before you put it in production. In this case you would choose to test all the groups in Functional mode for a specified period of time.

If you want to verify the connectivity of a particular device such as an option card, peripheral, or communication device, you might choose the Connection Test mode for that device.

The method used to select a test or group of tests varies based on the SunVTS user interface that you are using. For more information refer to one of the following sections:

• CDE user interface-"To Select Devices for Testing"

• OPEN LOOK user interface--"Using the OPEN LOOK Test Selection Panel"

• TTY user interface--"Selecting Tests and Test Groups"

Intervention

Certain tests require that you intervene before such tests can be selected. These tests require you to load test media or install loopback connectors, and enable the intervention mode before the tests can be selected.

You must install media in these devices if you plan to test them in Functional mode:

• Tape drive--load a scratch tape in the tape drive that you plan to test. The tape test has a Read-only mode, but use a scratch tape to avoid inadvertently writing over data.

• CD-ROM drive--load a compact disc (CD) into the drive. It can be an audio or data CD.

• Diskette drive--load a scratch diskette in the drive. The diskette test has a Read-only mode, but use a scratch tape to avoid inadvertently writing over data.

• Communication ports--many of these tests require a loopback connector attached to the port. Attach any required loopback connectors for the ports you plan to test. For more information about loopback connectors refer to the SunVTS 3.0 Test Reference Manual.

---

Note -

Install such requirements before the SunVTS kernel probes for devices (when SunVTS is started, or the reprobe function is run) to allow the SunVTS kernel to properly identify each device.

---

Intervention mode serves as a reminder that you may need to intervene before running certain tests; it does not verify that the appropriate test media or loopback connectors have been installed.

The location of the Intervention mode button varies based on the SunVTS interface that you are using. For specific details refer to:

• CDE interface--"CDE Device Selection Region"

• OPEN LOOK interface--"The Select Tests Button"

• TTY interface--"Setting TTY Options"