Normal control panel functions
These instructions show how to use normal control panel functions 01 through 49. Functions 21 through 49 are available when you select the Manual mode.
The instructions you follow for function 01 or 02 depend on whether your system uses a keystick. Also, the following instructions for functions 01 and 02 alternate between systems with a keystick and systems without a keystick.
To determine how to activate functions 01 and 02 on a control panel...
- Does the control panel have an electronic keylock (a keystick)?
Yes Go to the next step. No The system displays the IPL key mode (For Manual or Normal modes only). The Auto mode and Secure mode are not supported. Follow the procedures for functions 01 and 02 for systems without a keystick. - Insert the keystick.
Press the Mode button to select the IPL mode. Follow function 01 and 02 procedures for systems with a keystick.
The function that is displayed is not activated until you press Enter on the control panel.
To select a function number, press the Increment or Decrement button on the control panel. To activate the function, press Enter on the control panel while the system displays the required function number.
Function 01 - Display Selected IPL Type and IPL Speed (on Systems with a Keystick)
This function allows you to display the selected type and speed for the next IPL.
- Display IPL types (A, B, C, or D).
- Display IPL speed (F, S, SE, V=F, or V=S).
When selected, function 01 displays the currently selected IPL type and IPL speed values (where each _ represents 1 character).
The following table shows a function 01 example with a keystick.
Function 01 on systems with a keystick
| Function/data | Action or description |
|---|---|
0 1 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ | Use the Increment or Decrement buttons to scroll to function 01. |
0 1 _ _ A _ _ _ _ _ V = F _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ | Valid IPL types are A, B, C, or D.
Valid IPL speed displays are F, S, SE, V=F, or V=S. |
0 1 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ | Use the Increment or Decrement buttons to scroll through the control panel functions. |
Function 01 - Display Selected IPL Type, Logical Key Mode, and IPL Speed (on Systems without a Keystick)
This function allows you to display the selected IPL type, logical key mode, and speed for the next IPL.
- Display IPL types (A, B, C, or D).
- Display the valid logical key modes (M or N).
- Display IPL speed (F, S, SE, V=F, or V=S).
The following table shows a function 01 example on systems without a keystick.
Function 01 on systems without a keystick
| Function/data | Action or description |
|---|---|
0 1 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ | Use the Increment or Decrement buttons to scroll to function 01. |
0 1 _ _ A _ _ M _ _ V = F _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ | Valid IPL types are A, B, C, and D.
Valid logical key modes are Manual and Normal. Valid IPL speed displays are F, S, SE, V=F, or V=S. |
0 1 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ | Use the Increment or Decrement buttons to scroll through the control panel functions. |
Function 02 with a keystick - Select IPL Type and IPL Speed Override (on Systems with a Keystick)
Before you can use function 02, have the system in Manual mode. You can change the IPL types with the system turned on or off. However, to select the IPL speed override, turn off the system.
The following table shows the sequence used to select the IPL type on systems that are turned on.
Function 02 - Select IPL type on turned-on systems with a keystick
| Function/data | Action or description |
|---|---|
0 2 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ | Use the Increment or Decrement buttons to scroll to function 02. |
0 2 _ _ A < _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ | Press Enter to start function 02. The current IPL type is displayed with a pointer. |
0 2 _ _ B < _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ | Use the Increment or Decrement buttons to scroll through the IPL types. |
0 2 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ | Press Enter to select the IPL type and exit function 02. |
0 1 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ | Use the Increment or Decrement buttons to scroll through the control panel functions. |
The following table shows the sequence used to select the IPL type and IPL speed on systems that are turned off.
Function 02 - Select IPL type and IPL speed on turned-off systems with a keystick
| Function/Data | Action or Description |
|---|---|
0 2 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ | Use Increment or Decrement buttons to scroll to function 02. |
0 2 _ _ A < _ _ _ _ _ _ V _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ | Press Enter to start function 02:
|
0 2 _ _ B < _ _ _ _ _ _ V _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ | Use the Increment or Decrement buttons to scroll through the IPL types and speeds. |
0 2 _ _ B _ _ _ _ _ _ _ V _ < _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ | Press Enter to select the IPL type.
|
0 2 _ _ B _ _ _ _ _ _ _ S _ < _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ | Use the Increment or Decrement buttons to scroll through the IPL speeds. |
0 2 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ | Press Enter to select the IPL speed and exit function 02. |
0 1 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ | Use the Increment or Decrement buttons to scroll through the control panel functions. |
Function 02 without a keystick - Select IPL type, IPL speed override, and Logical key mode (on Systems without a Keystick)
You can use function 02 in either normal mode or manual mode. With the system either turned on or off, this function allows you to select the IPL type and logical key mode. Before you can select the IPL speed override, turn off the system.
Turned-on systems
For turned-on systems without a keystick, function 02 is used to select the IPL mode and logical key mode. The following table shows an example of the function 02 IPL type and logical key mode selection sequence for a turned-on system that does not have a keystick.
Function 02 - Select IPL type and logical key mode on turned-on systems without a keystick
| Function/data | Action or description |
|---|---|
0 2 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ | Use the Increment or Decrement buttons to scroll to function 02. |
0 2 _ _ A < _ M _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ | Press Enter to start function 02.
|
0 2 _ _ B < _ M _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ | Use the Increment or Decrement buttons to scroll through the IPL types. |
0 2 _ _ B _ _ M < _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ | Press Enter to select the IPL type. |
0 2 _ _ B _ _ N < _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ | Use the Increment or Decrement buttons to scroll through the logical key modes. |
0 2 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ | Press Enter to select the logical key mode and exit function 02. |
0 1 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ | Use the Increment or Decrement buttons to scroll through the control panel functions. |
Turned-off systems
For turned-off systems without a keystick, function 02 is used to select the IPL type, logical key mode, and IPL speed indicators. The following table shows an example of the function 02 IPL type, logical key mode, and IPL speed selection sequence for a turned-off system that does not have a keystick.
Function 02 - Select IPL type, logical key mode, and IPL speed on turned-off systems without a keystick
| Function/data | Action or description |
|---|---|
0 2 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ | Use the Increment or Decrement buttons to scroll to function 02. |
0 2 _ _ A < _ M _ _ _ _ V _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ | Press Enter to start function 02.
|
0 2 _ _ B < _ M _ _ _ _ V _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ | Use the Increment or Decrement buttons to scroll through the IPL types. |
0 2 _ _ B _ _ M < _ _ _ V _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ | Press Enter to select the IPL type.
|
0 2 _ _ B _ _ N < _ _ _ V _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ | Use the Increment or Decrement buttons to scroll through the logical key modes. |
0 2 _ _ B _ _ N _ _ _ _ V _ < _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ | Press Enter to select the logical key mode.
|
0 2 _ _ B _ _ N _ _ _ _ S _ < _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ | Use the Increment or Decrement buttons to scroll through the IPL speeds. |
0 2 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ | Press Enter to select the IPL speed and exit function 02. |
0 1 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ | Use the Increment or Decrement buttons to scroll through the control panel functions. |
Function 03 - Start IPL
The system enables function 03 only when the key mode is Manual and the system is turned on.
This function starts an IPL of the selected IPL type when you press the Enter button. The system will load all the Licensed Internal Code. Attention: No system shutdown is performed before the initial program load (IPL). The use of this function can cause data loss.
Function 04 - Lamp Test
This function shows whether any control panel indicators are burned out and whether characters that are displayed on the control panel Function/Data display are valid. When you activate this test, all the control panel lights and indicators flash on and off.
The lamp test continues on the system control panel until you perform another control panel function or a power procedure. The lamp test for the expansion unit control panel is active for 25 seconds and does not flash.
Use this procedure to verify that the lights on the system control panel are working correctly. If you cannot complete these steps, contact your service provider.
- Turn on the system.
- Press the Increment or Decrement buttons on the control panel to display function 04.
Press Enter on the control panel.
- Do all of the lights and indicators on the system control panel flash on and off?
Yes Proceed to the next step. No Need to exchange the control panel or the replaceable unit that contains the control panel function (system unit backplane (MB1) or tower card (CB1)). Contact your service provider. - Do all the control panel lights on the expansion unit come on?
Yes End. No Exchange the control panel on the expansion unit.
The lights on the system control panel are working correctly.
Function 05 - SPCN SRC
Function 05 displays information about power faults and provides informational reference codes during disk-unit concurrent maintenance procedures. The format for this function is as follows:
SPCN SRC formats
Function 07
Function 07 is only used during service by authorized IBM service representatives.
Function 08 - Fast Turn Off
Function 08 is enabled only when the key mode is Manual and the system is turned on.
Use this function when the system is suspended and you cannot perform a turn-off operation.
The first time that you select function 08 and press Enter, the system displays an attention SRC, 11 A1xx 8008. This SRC indicates that you selected Function 08. The second time that you select function 08 and press Enter, you confirm the request to turn off. To perform a fast turn off, see Stopping the system. Attention: No system shutdown is performed before the initial program load (IPL). The use of this function can cause loss of data. Attention: If the system password was changed at the most recent IPL, performing a fast turn off might cause that new password information to be lost.
Functions 09 to 10 - Reserved
These functions are reserved for future control panel operations.
Functions 11 to 19 - System Reference Code (SRC)
Functions 11 though 19, if enabled, represent the words of the SRC.
You must record SRC information for error reporting and contact your service provider.
Function 20 - System type, model, feature code, hardware level, and IPL path description
This function displays the machine type, model, processor feature code, hardware level, and IPL path description in the following format:
|
t m m m c c c c _ _ _ _ _ _ _ _ h h h h _ _ _ _ i i i i i i i i |
Values for t indicate the machine type:
| 1 | 9401 |
| 2 | 9402 |
| 4 | 9404 |
| 6 | 9406 |
Values for m indicate the model:
| mmm | Model number (for example, 820) |
Values for c indicate the system processor feature code:
| cccc | Processor feature code (for example, 23A4) |
Values for hhhh indicate the system processor hardware level:
| hhhh | Processor hardware level (for example, 1025) |
Values for iiiiiiii indicate the description of the system turn on or restart path:
| iiiiiiii | The restart path description (for example, 00 000 001 indicates that the system was turned on by using the white button on the control panel). |
You should record this information with the SRC.
Function 21 - Make DST Available
This function makes DST available on the system console display. The Use Dedicated Service Tools (DST) display appears on the primary or alternative console.
To exit DST and return to the operating system, select the Resume operating system display option on the Use Dedicated Service Tools (DST) display.
Function 22 - Dump Main Storage
This function dumps main storage and processor data to the disk.
Before to pressing function 22, determine whether function 34 is available ( 00 shows in the panel after you select function 34). If it is available, then the system is attempting to run a main storage dump IPL. Using function 34 attempts to try the IPL again, such that the original dump is not lost. If function 34 is not enabled, ( >FF shows in the panel after you select function 34), go back and start function 22.
The first time that you select function 22 and press Enter, the system displays attention SRC 11 A1xx 3022. This indicates that you selected function 22. To dump main storage and system processor data to the disk, select function 22 again and press Enter.
Use this function only when a main storage dump is necessary, for example, after a suspended (system hang) condition or after an operating system failure. Attention: No system shutdown is performed before the main storage dump. The use of this function can cause data loss.
Functions 25 and 26 - Service Switches 1 and 2
In function 25, the service representative switch 1 is set. Function 25 is the first step necessary to set the service function range (50 to 99).
In function 26, the service representative switch 2 is set. Function 26 is the second step necessary to set the service function range (50 to 99).
Function 33 - Reorder SPCN Addressing
This function puts the rack addresses in the correct order to show their position in the system power control network (SPCN). Use it when you have added racks to or removed them from the system.
Function 34 - Retry MSD IPL
Function 34 is enabled only for main storage dump (MSD) IPLs. You can use it when the system is hung during the MSD IPL to try the IPL again without losing the original dump information.
Parent topic:
Instructions and descriptions for control panel functions
Related reference
Stopping the system