IBM 3745 Series Service Functions page 30

MSA (IPL Information)
MSA Field Definitions (IPL Information)
Field S
Field T
CUSTQt.IER 10: 3745-x10 SERIAL NUI-IBER:
CCU-A SELECTED PROCESS I·IOSS OFFLIIIE BT X71:008000
RUN BYP-IOC-CHK STOP-CCU-CHK AC
IPL CCU-A PHASE 4 ENABLED CA xxxxxxxxxxxxxxxx L xxxxxxxx
------------------------------------------------------------- mm/dd/yy 10:20
FUNCTION ON SCREEN: FUNCTION PENDING:
Figure 1-13. MSA Example with IPL Information
CCU/scanner IPL information is displayed on line 4 for CCU-A, and on line 7 for
CCU-B.
A short time after successful completion of the IPL, these lines are cleared and
line 7 is filled with dashes plus the date and time.
CUSTOMER 10: 3745 SERIAL NUI·1BER:
CCU-A SELECTED PROCESS MOSS OFFLINE BT X71:008000
RUN BYP-IOC-CHK STOP-CCU-CHK AC
I
I PL CCU-A
II
PHASE
41
D
ENABLED CA
xxxxxxxxxxxxxxxx
L
xxxxxxxx
Figure 1-14. Fields of the IPL Information in the MSA
This figure shows the breakdown of the IPL information fields in line 4 (CCU A
IPL) or 7 (CCU B IPL).
IPL CCU-x
PHASE 1
PHASE 2
PHASE 3
PHASE 4
SUSPEND
(x can be A or B). A CCU IPL is started.
Start of phase 1 (CCU test and initialization).
Start of phase 2 (load from the disk and start the control
program dump loader (CLOP).
Start of phase 3 (load and initialize the scanners).
Start of phase 4 (load/dump from the host or disk, and initialize
the control program).
An automatic IPL has been requested on a CCU, while IPL was
not yet completed on the other one. From a MOSS standpoint,
the latter CCU is frozen, until the other reaches phase 3 or 4,
depending on the moment the request was received.
All fields are frozen, except 'F' and 'L'.
Chapter 1. How to Use the MOSS Function Screens
1-17