IBM eserver 630 6C4, Service Manual

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Loading Online Diagnostics from a TTY or LFT
Online diagnostics can be loaded by booting using the customized service mode boot
list by pressing the number 6 key on a directly attached keyboard or on an ASCII
terminal.
The procedure for booting from the devices listed in the service mode boot list (Online
Diagnostics) is the following:
1. Verify with the system administrator and users that all programs may be stopped,
then do so.
2. Turn off the system.
3. Wait 30 seconds, and turn on the system.
4. After the keyboard indicator appears during startup, and before the tone sounds,
press the number 6 key on a directly attached keyboard or on an ASCII terminal.
5. Enter any requested passwords.
After any requested passwords have been entered, the system attempts to boot from
the first device of each type found on the list. If no bootable image is found on the first
device of each type on the list, the system does not search through the other devices of
that type for a bootable image; instead, it polls the first device of the next type.
If all types of devices in the boot list have been polled without finding a bootable image,
the system restarts, this gives the user the opportunity to start the System Management
Services (by pressing the number 1 key on a directly attached keyboard or on an ASCII
terminal) before the system attempts to boot again.
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 from a Hardware Management
Console (HMC)
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.
274 Eserver
pSeries 630 Models 6C4 and 6E4 Service Guide