Cannot Power Off System (No Src) - IBM Application System/400 Service Information

Cannot Power Off System
(No SRC)
1
Warning: To prevent loss of data, ask the
customer to verify that no interactive jobs
are running before you perform with this
procedure.
If the system is in a hang condition and it is
not possible to power off normally, you can
perform an abnormal power off by doing
the following steps.
Notes:
a. It is assumed that you have already
attempted to power off the system
using PWRDWNSYS *IMMED (the
Power Down System Immediate
command) from the console, and the
system did not power off.
b. The following steps should not be used
to correct a problem with the system.
You should power off only after per-
forming all possible problem analysis
procedures.
2
Perform the following:
a. Perform an IPL using the type that the
system is currently set at (A, 8, or D)
and mode M.
b. Go to the Use Dedicated Service Tools
(DST) display by selecting function 21
on the control panel.
c. If the workstation fails to respond, go to
step 8 of this procedure.
3
Select the Start a service tool option from
the Use Dedicated Service Tools (DST)
display.
Use Dedicated Service Tools (OST)
Select one of the following:
1. Perfom an I Pl
2. Install the operating system
3. Work with Licensed Internal Code
4. Work with disk units
5. Work with CST environment
6. Select CST console mode
7. Start
/I.
service tool
B. Perfo"" automatic installation of the operating system
g. Work with Save Storage and Restore Storage
Selection
F3=Exi
t
Fl2=Cancel
Figure 1-1. Use Dedicated Service Tools (DST)
Display
4
Select the Power off the system option
'from the Start a Service Tool display.
Start a Service Tool
Select one of the following:
1.
Display/alter/dump
2. Vertical licensed Internal Code log
3. Trace Vertical licensed Internal Code
4. Display hardware configuration
5. I/O Debug utility
6. Pri nt stand-alone dump
7. Error log utility
8.
Power off the system
Option
F3=Exi t F12:::Cancel
Figure 1-2. Start
a
Service Tool Display
5
The system should now power off (it may
take up to 20 minutes for the system to
power off).
Does the system power off, and is the
Power On light off?
No Yes
~ Go to step 8 of this procedure.
6
Warning: Using the control panel Power
button to power off the 9401 system may
cause unpredictable results in the data files,
and the next IPL will take longer to com-
plete.
Perform the following:
a. Open the front cover of the 9401.
Chapter 1. Starting Problem Isolation
1-7