System/370 Model 195 (cont'd)
Loading the Secondary Nucleus
(OS)
This procedure replaces step 4
of
"Manual IPL" where the installation uses the second-
ary nucleus instead of the primary nucleus.
1.
Press STOP; manual light turns on.
2.
Set ADDRESS switches to location hex 80
3. Set
ADDRESS COMPARE
to
INSN
SOFT STOP.
4. Press LOAD; load light turns on, the manual light turns off, and system reset
occurs.
When
the loader portion of the program
is
in
main storage, the load
light turns off and the manual light turns on.
5.
Perform steps 1-4 of "Display
Main
Storage"
at
location hex 000008.
6. Enter the data
(2
hex digits)
in
the appropriate CXR!CBR (data) switches.
The two hex digits may range from
F1
to F9. (Last hex digit determined by
last character of nucleus name.)
7. Press
STORE.
S.
Return ADDRESS COMPARE switch to normal setting (PROCESS).
9. Press START. (The secondary nucleus
has
been loaded.)
Page
3-23
To Next Page
Loading...
Need help?
General