Change system values during IPL

System values control information that affects the operation of certain parts of the system. Some system values that you change do not take effect until the next initial program load (IPL); other system values take effect immediately.

On the System Value Commands display, you can change system values that affect IPL or other areas of the system. This display is shown when you type a Y (Yes) in the Define or change the system at IPL field on the IPL Options display (see step 6).

To change system values during an IPL:

Select option 3 (System value commands) on the Define or Change System at IPL display (see Defining or Changing the System at IPL).
Select option 3 (Work with system values).
Select option 2 (Change) on the Work with System Values display.
Type the new system value over the current value and press Enter.
Press F3 (Exit) to return to the System Value Commands display.
Press F3 (Exit) to return to the Define or Change the System at IPL display, and press F3 again to continue the IPL.

Security considerations:

To change system values, you must be signed on as QPGMR, QSYSOPR, or QSRV, or have all object (*ALLOBJ) authority. Certain system values can be changed only by a security officer (someone with all object (*ALLOBJ) and security administrator (*SECADM) special authorities).