Online Diagnostics Modes of Operation
Note: When running online diagnostics on a partition in a partitioned system,
diagnostics can be run only on resources that are allocated to that partition.
The online diagnostics can be run in the following modes:
v
Service Mode
v
Concurrent Mode
v
Maintenance Mode
Service Mode
Service mode provides the most complete checkout of the system resources. This
mode also requires that no other programs be running on the partition or system on a
full system partition. All partition or system on a full system partition resources, except
the SCSI adapter and the disk drives used for paging, can be tested. However, note
that the memory and processor are only tested during POST, and the results of the
POST tests are reported by diagnostics.
Error-log analysis is done in service mode when you select the Problem Determination
option on the DIAGNOSTIC MODE SELECTION menu.
Running Online Diagnostics in Service Mode
To run the online diagnostics in service mode from the boot hard disk, do the following:
1. From the HMC select the Partition Manager.
2. Right click on the mouse and select Open Terminal Window
3. From the Service Processor Menu on the VTERM select Option 2 System Power
Control.
4. Select option 6. Verify that the state changes to
currently disabled
. Disabling
fast system boot automatically enables slow boot.
5. Select Option 98 to exit the system power control menu.
6. Use the HMC to power on the managed system in a full system partition by
selecting the managed system in the Contents area.
7. Right click or select the desired system in the Contents area. Next, on the menu,
choose Selected.
8. Select Power On.
9. Select the Power on Diagnostic Stored Boot list option (refer to Full System
Management Tasks in the
Hardware Management Console for pSeries Operations
Guide, order number SA38-0603, for more information on full system partitions).
10. Make sure that there are no media in the devices in the media subsystem.
11. Enter any passwords, if requested.
Chapter 5. Using the Online and Standalone Diagnostics
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