Selecting function 21 from the control panel

This topic provides detailed instructions on selecting function 21 while the system is operational.

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

   Select manual mode, then push the increment (↑) or decrement (↓) 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 is shown on the control panel. Enter Function 21 again to force the DST Sign On display to be shown on one of the alternative consoles.
2. Primary console or alternate console shows the DST sign-on display.
   Note: For more information on how to identify the primary console, see Primary consoles or alternative consoles.
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 of the operating system, you are limited to three sign-on attempts to DST. After three unsuccessful attempts, the service tools user ID is disabled. The system administrator with QSECOFR authority needs to reset the ID.

   The Use Dedicated Service Tools (DST) display is shown. The system is in the full paging environment. This ends the procedure.