IBM 3745 Service Functions page 19

MSA (CCU)
Machine Status Area
The 3745 status is permanently displayed (and updated every 500 ms) on lines 2
to 7 of the operator console screen, called the machine status area (MSA). Dif-
ferent types of information are displayed in the MSA.
Lines 2 and 3
Line 4
Lines 5 and 6
CCU information.
CCU, IPL, scanner or token-ring/TIC information
Adapters hardware configuration.
MSA Fields Definition (CCU Information)
Field A
Field B
Field C
Field 0
CUSTOMER ID: 3745 SERIAL NUMBER:
CCU-A PROCESS MOSS OFFLINE BT X71:xxxxxx LAR:xxxxxx OP:XXXX C:O
RUN STOP-IOC-CHK STOP-CCU-CHK AC X72:xxxxxx IAR:xxxxxx ILVL:xxxx Z:O
Figure 1-8. MSA Example with CCU Information
[aU!]
c=J
!PROCESsll~10SS
OFFLINE1
B
!X71:xxxxxxl!LAR:xxxxxx OP:xxxx c:ol
~
!STOP-IOC-CHKI
!STOP-CCU-CHKI
~
!X72:xxxxxxl !IAR:XXXXXX ILVL:xxxx z:ol
~
0
Figure 1-9. Fields of the CCU Information in the MSA
Always: CCU-A
Unused
CCU mode:
PROCESS
I-STEP
Normal processing.
Instruction step.
Indicates whether MOSS is connected to the CCU control program:
MOSS-ONLINE MOSS is connected to the CCU control program.
MOSS-OFFLINE MOSS is not connected to the CCU control program.
MOSS-ALONE MOSS is operational while the CCU control program is not
loaded or not operational.
To put MOSS alone, when it is online or offline, you may:
• Perform CCU RST function (see Advanced Operations
Guide), or
• Perform the following actions:
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3745 Service Functions
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