Display/Update Ccu Operating Mode - IBM 3745 Series Service Functions

CCU Operating Mode
Display/Update CCU Operating Mode
1. You must be in the CDF display/update func-
tion (see page 9-15).
2. Select option 9 (CCU operating mode) in the
CDF display/update screen
Ii
(see page 9-7).
This screen is displayed.
3. Press FS. Screen
III
is displayed.
In
D
and
fJ
enter the information (refer to next
paragraph and next tables for details) then press
SEND. The following message is displayed:
UPDATE OF THE CDF FILE SUCCESSFUL
m
CGF-
DISPLAY : CCU OPERATING MODE
CCJ C D [R"ll'IG
~'OOE
(! TO 4)
1 ; TwIN OU"L
? ; TwI"l ST~"~:;v
3 -
TI,:'1
6AC~UP
4 ; Sl',GlE
Tw: 'I S' ,,',CAY 'lC8f
o'a
Y:
cp,
RA l!
~·.AL CC~
(A OR B) : ,
fl :END
F3:A,ARt~ F5:UPQAT[ F6:C.:T
Figure 9-83. Display CCU Operating Mode
m
CDF-
UPDATE : CCU OPERATING MODE
CCJ OPERATI~G ~IOJf (! TO 4)
1 ;
TW:~
DUAL
2 ~ TW; N ST "NOBY
3 ; Tw!N BACKUP
4 ; SINGLE
TWIN STANDBY
~10DE
ONLY:
op,
R"TIONAL CCU (A OR B) :
D
Fl :ENO F3:ALARM f5:UPDAI[ f6:C.:r
Figure 9-84. Update CCU Operating Mode
Rules for Changing the CCU Operating Mode
• Before changing the operating mode, check that some files (such as the
port swap file) are closed, otherwise the request will be rejected.
• The operating modes can be changed according to the following rules:
In MOSS alone state: all operating modes
In MOSS not alone state:
Twin dual to twin backup
- Twin backup to twin dual (if no fallback)
- Twin standby to twin backup, or twin dual, or single
• If you select the twin standby mode without selecting the operational CCU,
the message ~1ANDATORY
INPUT
is displayed:
The following table provides the possible changes of the CCU operating mode,
and their associated actions:
Chapter 9. Configuration Data File (CD F)
9-43