Accessing Dedicated Service Tools

You can start dedicated service tools (DST) in several ways:

• Performing an IPL to DST (see Performing an IPL to DST).
• Pressing the System Request key while the system is operational.
• Selecting function 21 while the system is operational (see Selecting function 21 from the control panel).

  This is available from the primary partition only.

• Performing an alternate IPL to DST (type D IPL) (see Performing an alternate IPL to DST (type D IPL)).

  After performing a type D IPL on a primary partition, the first step in DST must be configuration recovery.

• Using the function key F16, which is not displayed, while in DST debug mode during a step-mode IPL.

• Related tasks
• Selecting function 21 from the control panel
  Provides detailed instructions on selecting function 21 while the system is operational.
• Performing an IPL to DST
  This procedure is for the entire system, or if logical partitions are installed, for the primary partition.
• Performing an alternate IPL to DST (type D IPL)
  An alternate IPL to DST is called a type D IPL or a stand-alone IPL by service representatives.

• Related reference
• Control panel function codes on the HMC
  Learn about the control panel function codes used to indicate status and function options for a system that is managed by a Hardware Management Console (HMC).

Selecting function 21 from the control panel

Perform the following steps:

1. Select control panel Function 21 (Make DST available).

   Select Manual mode, then push the Increment (^) or Decrement (V) button on the control panel until 21 appears in the Function/Data display. Press the Enter button on the control panel.

   Notes:
   1. If you enter Function 21 and the primary console is powered off or not usable, reference code A600 500x appears on the control panel. Enter Function 21 again to force the DST Sign On display to appear on one of the alternative consoles.
2. Primary console or alternate console will display the DST sign on.
   Note:
   For more information on how to identify the primary console, see Determining a primary or alternative console.
3. Sign-on to DST.

   Type QSRV as the valid user ID and get the password from the customer. If the customer has changed the full DST authority user ID or password, ask the customer for the correct values.

   Note:
   • If prompted for a password, be sure to give the new (changed) password to the customer.
   • Since V5R1, you are limited to three sign on attempts to DST. After three unsuccessful attempts, the service tools user ID will be disabled. The system administrator with QSECOFR authority will need to reset the ID.
4. The Use Dedicated Service Tools (DST) display appears.

   The system is in the full paging environment.

   This ends the procedure.

Control panel function codes on the HMC

If you are managing the system with the Hardware Management Console (HMC), use the HMC to perform control panel functions. Servers without physical panels require the HMC to perform the equivalent control panel functions. The HMC affects the physical control panel in the following ways:

• Except for some limited auto-platform override function, such as Auto Power On Restart and Timed Power On, the system operating mode value no longer has meaning.
• The operating system IPL-type value is disabled in functions 01 and 02.
• Functions 11-19 do not display partition system reference codes (SRCs). They continue to display SRCs from the platform Licensed Internal Code (LIC).
• Functions 21, 22, 34, and 65-70 are not selectable on the physical control panel.

The following table lists the control panel functions that you can perform on the HMC.

Performing an IPL to DST

Perform the following steps:

1. Select a type B IPL in Manual mode.
   Attention: For systems with logical partitions, performing an IPL on the primary partition causes the secondary partitions to be powered down. Failing to power down these secondary partitions will cause an abnormal power-down on the secondary partitions and possible loss of data.
2. Perform one of the following:
   • If there is a problem log entry after powering on the system, perform a delayed power-off. (This is the data for problem analysis.) When the system is off, press the Power button on the control panel to perform an IPL. Select Function 03 if the delayed power-off takes longer than 40 minutes to complete.
     Attention: Performing Function 03 may cause damage to objects, and it may also cause data loss.
   • If there is an attention light after powering on the system, use the Increment (^) or Decrement (V) button to select control panel Function 03. Press Enter on the control panel to perform an IPL.
   • When the system is powered off, press the Power button on the control panel to perform an IPL.

     The IPL or Install the System display appears on the primary console.

3. Select the Use Dedicated Service Tools option. The DST Sign On display appears.

   For more information on how to identify the primary console, see Determining a primary or alternative console.

4. Sign on to DST with a valid user ID and password.
   Remember:
   Enter a valid user ID and get the password from the customer. If the customer has changed the full DST authority, user ID, or password, ask the customer for the correct values.
   Note:
   • If prompted for a password, be sure to give the new (changed) password to the customer.
   • You are limited to three sign on attempts to DST. After three unsuccessful attempts, the service tools user ID will be disabled. A user ID with a service tool security privilege must reset the ID.

   The Use Dedicated Service Tools (DST) display appears.

   Restriction:
   The system is in the limited paging environment.

   This ends the procedure.

Performing an alternate IPL to DST (type D IPL)

An alternate IPL to DST is called a type D IPL or a stand-alone IPL by service representatives. Perform the following steps:

1. To use an alternate installation device, select the DST option to Work with alternate installation device. This option is available in DST from control panel function 21 or a type D IPL.
2. Determine the removable media unit or units for an alternate IPL. Power on the removable media units.
3. Place the media that contains the Licensed Internal Code (first tape of the customer's system save, the SAVLIC, ISMD tapes, or optical device) in the removable media units. Load the media and make the media units ready. See the device information for instructions on loading the removable media.
4. Power off the system. If the system is running, end all jobs and perform the power down procedure.
5. Select a type D IPL in Manual mode.

   For information on how to select IPL options, see IPL type, mode, and speed options.

6. Power on the console.

   For more information on how to identify the primary console, see Determining a primary or alternative console.

7. Load the media and make the media unit ready.
8. Press the Power button to power on the system.
   Notes:
   1. Some types of removable media units automatically reset. In this condition, SRC A100 1933 (Media device not ready) may be displayed.
   2. If the installation device is an optical device, you may need to IPL the system again. This action will make the unit ready.

      pwrdwnsys restart(*yes) IPL(D)

   3. If the installation device is a tape unit, system reference code (SRC) A1001933 is displayed until the device automatically makes itself ready.
   4. The removable media becomes active. There is a delay while the system loads information from the load source. While running a process, the system continuously updates SRCs on the control panel that show the status.
9. Wait for the Install Licensed Internal Code display to appear on the console. The wait varies depending on the speed of the removable media unit and the processor speed for the specific system model.
   Notes:
   1. If SRC A600 500x is displayed on the control panel, the system was not able to locate the console.

      Ensure that the console is powered on (repair if necessary). Select Function 21 on the control panel (see Selecting function 21 from the control panel) to make DST available.

   2. If an SRC other than A600 500x is displayed on the control panel, go to "Starting Point for All Problems" in the Problem Analysis information for your system.
10. The Install Licensed Internal Code display appears on the console.
    • If you want to access DST, select the Work with Dedicated Service Tools (DST) option and continue to the next step of this procedure.
    • If you want to install or restore Licensed Internal Code, select the Install Licensed Internal Code option and continue with the install or restore instructions.
    • If you want to define the device from which the system LIC should be installed, select the Define alternate installation device option. This option also allows you to enable or disable the alternate installation device.
11. Reapply PTFs.
12. Sign on to DST as QSRV.

    Type QSRV as the valid user ID and get the password from the customer. If the customer has changed the full DST authority user ID or password, ask the customer for the correct values.

    Note:
    1. If prompted for a password, be sure to give the new (changed) password to the customer.
    2. You are limited to three sign on attempts to DST. After three unsuccessful attempts, the service tools user ID will be disabled. The system administrator with QSECOFR authority will need to reset the ID.
13. The Use Dedicated Service Tools (DST) display appears. Options are limited because the system is in the stand-alone environment.

    This ends the procedure.