IBM RS/6000 44P manual Concurrent Mode

Note: The term POST indicator refers to the Icons (graphic display) or device mnemonics (ASCII terminal) that are displayed while the POST is executing.

6.Enter any requested password.

7.Follow any instructions to select a console.

8.After the diagnostic controller loads, DIAGNOSTIC OPERATING INSTRUCTIONS appear on the console display.

9.Follow the displayed instructions to check out the desired resources.

10.When testing is complete, use the F3 key to return to the DIAGNOSTIC OPERATING INSTRUCTIONS.

11.Press the F3 key (from a defined terminal) or press 99 (for an undefined terminal) to shut down the diagnostics before turning off the system unit.

Note: Pressing the F3 key (from a defined terminal) produces a Confirm Exit menu containing two options:

vContinue with the shutdown by pressing F3.

vReturn to diagnostics by pressing Enter.

For undefined terminals, pressing 99 produces a menu containing two options:

vContinue with the shutdown by pressing 99, then Enter

vReturn to diagnostics by pressing Enter.

Concurrent Mode

Concurrent mode provides a way to run Online diagnostics on some of the system resources while the system is running normal activity.

Because the system is running in normal operation, some of the resources cannot be tested. The following resources cannot be tested in concurrent mode:

vSCSI adapters connected to paging devices

vDisk drive used for paging

vAny graphics-related device if running X, CDE, or windowing environment.

vMemory

vProcessor

Three levels of testing are available in concurrent mode:

vThe share-test level tests a resource while the resource is being shared by programs running in the normal operation. This testing is mostly limited to normal commands that test for the presence of a device or adapter.

vThe sub-test level tests a portion of a resource while the remaining part of the resource is being used in normal operation. For example, this test could test one port of a multiport device while the other ports are being used in normal operation.

vThe full-test level requires the device not be assigned to or used by any other operation. This level of testing on a disk drive might require the use of the varyoff command. The diagnostics display menus allow you to vary off the needed resource.

11044P Series Model 170 User's Guide