Initial Program Load (Ipl); Ipl Error Recovery - IBM System/370 145 Operating Procedures Manual

INITIAL PROGRAM LOAD (lPL)
1
Load and ready the SYS RES device.
2
Dial the address of the IPL dev.ice. into LOAD UNIT
ADDRESS switches F ,G,and H.
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3
Press the LOAD key.
• After an automatic system reset, the IPL operation
starts.
• The LOAD indicator turns on.
• When IPL is complete, the LOAD indicator turns off
and the system either executes the program or enters
the soft-stop state awaiting your action ..
IPL ERROR RECOVERY
• Are LOAD UNIT ADDRESS switches F,G,and H correct? '
• Is SYS RES device ready?
If setup is correct and IPL errors still occur, see"Handling
Abnormal Situations--Introductory Flowchart," page 84.
Operating Procedures 55
I