IBM RS/6000 7043 43P manual Concurrent Mode

Note: Pressing	the	F3	key (from a defined terminal)	produces a		"Con
popup menu which offers two options: continuing with the shutdo
pressing	F3;	or	returning to diagnostics by pressing		Enter.
For undefined terminals, pressing 99 produces a				full	screen	menu
offers two options: continuing with the shutdown				by	pressing	99
Enter; or	returning to diagnostics by pressing			Enter.

Concurrent Mode

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

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

Ÿ SCSI adapters connected to paging devices

Ÿ The disk drive used for paging

ŸSome display adapters

ŸMemory

ŸProcessor.

There are three levels of testing in concurrent mode:

ŸThe share-test level tests a resource while the resource is being programs running in the normal operation. This testing is mostly limit

commands that test for the presence of a device or adapter.

ŸThe sub-test level tests a portion of a resource while the remainin

resource is being used in normal operation. For example, this tes port of a multiport device while the other ports are being use operation.

ŸThe full-test level requires the device not be assigned to or used operation. This level of testing on a disk drive mayvaryoffrequire th command. The diagnostics display menus to allow you to vary off resource.

Error log analysis is done in concurrent mode when you select the Determination option on the DIAGNOSTIC MODE SELECTION menu.

To run the Online diagnostics in concurrent mode you must be logged operating system and have proper authority to issue the commands ( help).

Chapter 5. Using the Online and Standalone Diagnostics5-11