IBM 6.00E+04, 6C4 manual Running the Online Diagnostics in Concurrent Mode

Running the Online Diagnostics in Concurrent Mode

Use concurrent mode to run online diagnostics on some of the system resources while the system is running normal system activity.

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

vSCSI adapters connected to paging devices

vDisk drive used for paging

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

vMemory

vProcessor

The following levels of testing exist 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 might 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 to allow you to vary off the needed resource.

Error log analysis is done in concurrent mode when you select the Problem

Determination option on the DIAGNOSTIC MODE SELECTION menu.

To run the online diagnostics in concurrent mode, you must be logged in to the AIX operating system and have proper authority to issue the commands (if needed, get help).

The diag command loads the diagnostic controller and displays the online diagnostic menus.

To run online diagnostics in concurrent mode, use the following steps:

1.Log in to the AIX operating system as root user or use CE login.

2.Enter the diag command.

3.When the DIAGNOSTIC OPERATING INSTRUCTIONS display, follow the instructions to test the desired resources.

4.When testing is complete, use the F3 key to return to the DIAGNOSTIC OPERATING INSTRUCTIONS. Press the F3 key again to return to the operating system prompt. Be sure to vary on any resource you had varied off.

5.Press the Ctrl-D key sequence to log off from root user.

Chapter 5. Using the Standalone and Online Diagnostics 99