If you need to perform simple IPL you can use command :
first you can use CHGIPLA command (+F4) to setup for example restart to Restricted state and another parameters...
Change IPL Attributes (CHGIPLA)
Type choices, press Enter.
Restart type . . . . . . . . . . *FULL *SAME, *SYS, *FULL
Keylock position . . . . . . . . *NORMAL *SAME, *NORMAL, *AUTO...
Hardware diagnostics . . . . . . *MIN *SAME, *MIN, *ALL
Compress job tables . . . . . . *NONE *SAME, *NONE, *NEXT...
Check job tables . . . . . . . . *ALL *SAME, *ABNORMAL, *ALL, *SYNC
Rebuild product directory . . . *NONE *SAME, *NONE, *NORMAL...
Mail Server Framework recovery *NONE *SAME, *NONE, *ABNORMAL
Display status . . . . . . . . . *ALL *SAME, *SYS, *NONE...
Start TCP/IP . . . . . . . . . . *YES *SAME, *YES, *NO
Spooled file recovery . . . . . *DETACH *SAME, *DETACH, *REMOVE
Clear job queues . . . . . . . . *NO *SAME, *YES, *NO
Clear output queues . . . . . . *NO *SAME, *YES, *NO
Clear incomplete joblogs . . . . *NO *SAME, *YES, *NO
Start print writers . . . . . . *YES *SAME, *YES, *NO, *NONE
Start to restricted state . . . *NO *SAME, *YES, *NO then you can do the restart :
PWRDWNSYS DELAY(300) RESTART(*YES) or use F4 for some extra settings
Power Down System (PWRDWNSYS)
Type choices, press Enter.
How to end . . . . . . . . . . . *CNTRLD *CNTRLD, *IMMED
Controlled end delay time . . . 300 Seconds, *NOLIMIT
Restart options:
Restart after power down . . . *yes *NO, *YES
Restart type . . . . . . . . . *IPLA *IPLA, *SYS, *FULL
IPL source . . . . . . . . . . . *PANEL *PANEL, A, B, D, *IMGCLG
Additional Parameters
End subsystem option . . . . . . *DFT *DFT, *NOJOBLOG, *CHGPTY...
+ for more values
Timeout option . . . . . . . . . *CONTINUE *CONTINUE, *MSD, *SYSREFCDE
Confirm . . . . . . . . . . . . *ENVVAR *ENVVAR, *INTERACT, *YES, *NO
Install PTF device . . . . . . . *NONE Name, *NONE, *SERVICE Then you have to approve confirmation screen
Confirm Power Down of System
System . . . . . . . . . . . . . . . . : IBMXXX
To confirm power down, press F16.
To cancel, press F12.
Selection or command
===>
F3=Exit F4=Prompt F9=Retrieve F12=Cancel
PWRDWNSYS command issued by user ADMIN and is being processed. During the IPL some information screen are shown
DSPIPLA
Display IPL Attributes
System: IBMXXX
System Features:
Restart type . . . . . . . . . . . . . . . . . : *SYS
Keylock position . . . . . . . . . . . . . . . : *NORMAL
Hardware Functions:
Hardware diagnostics . . . . . . . . . . . . . : *MIN
Operating System Functions:
Compress job tables . . . . . . . . . . . . . . : *NONE
Check job tables . . . . . . . . . . . . . . . : *ABNORMAL
Rebuild product directory . . . . . . . . . . . : *NONE
Mail Server Framework recovery . . . . . . . . : *NONE
Display status . . . . . . . . . . . . . . . . : *ALL
Start TCP/IP . . . . . . . . . . . . . . . . . : *YES
Spooled file recovery . . . . . . . . . . . . . : *DETACH
Operating System Options:
Clear job queues . . . . . . . . . . . . . . . : *NO
Clear output queues . . . . . . . . . . . . . . : *NO
Clear incomplete joblogs . . . . . . . . . . . : *NO
Start print writers . . . . . . . . . . . . . . : *YES
Start system to restricted state . . . . . . . : *NO Licensed Internal Code IPL in Progress
13/03/21 17:46:04
IPL:
Type . . . . . . . . . . . . . . : Unattended
Start date and time . . . . . . . : 13/03/21 17:46:04
Previous system end . . . . . . . : Normal
Current step / total . . . . . . : 1 16
Reference code detail . . . . . . : C6004050
IPL step Time Elapsed Time Remaining
>Storage Management Recovery 00:00:00
Start LIC Log
Main Storage Dump Recovery
Trace Table Initialization
Context Rebuild
Item:
Current / Total . . . . . . :
Sub Item:
Identifier . . . . . . . . :
Current / Total . . . . . . : Operating System IPL in Progress
13/03/21 17:46:52
IPL:
Type . . . . . . . . . . . . . . : Unattended
Start date and time . . . . . . . : 13/03/21 17:46:04
Previous system end . . . . . . . : Normal
Current step / total . . . . . . : 16 49
Reference code detail . . . . . . : C900 2A85 20 51 0048
IPL step Time Elapsed Time Remaining
SMS initialization 00:00:00
Internal journal recovery 00:00:01
SAG initialization 00:00:00
PTF processing
Signals initialization