IBM 3745 Series Service Functions page 236

CA Basic Commands
1. In
D,
enter one of the commands listed on
the screen.
o
:" : :S"AT: lI,n
"s: :
I~ TR A: RE:UEST=E STA" JS=~:SAB.E;)
2. Press SEND.
cell A
lS"'A":
CC~~'~E:iE~ CS~C:
IN 8:
R'~vES~=E
STA"
JS=~ISA8JJ
PS Iu:
4
ENTER A CIJIMAND
See page 10-7 for description of the first two lines
of the screen, and "CA Commands" on page 10-5
for details on commands.
E~A = ENABLE A
U,B = ENAB~E B
CSA = DISflBlE A
JSB = DISABLE 8
Sf A
=
S£'.D IIC
H.r
=
I'oITlfI,:ZE
RST = R~ SET
Dr'p = CvriP
STT = START TRACE
SPT = STOP TRACE
:~~ = O:SPLAV R'GISTE~S
CST = DISPLAY STORAGE
OTO = OISP,,,V T~"CE ~ATA
CA Commands
ERROR A,lR;
Fl :E',O f 3:AlA~M F6:Qv: T
Figure 10-10, CA Command Screen
In functional mode, and to avoid possible disturbances, the OST command is
not available, some registers (ORG command, option 1) are not displayable,
and some RAM positions (ORM command) are not readable. Functional mode
means that the following three conditions are met:
1. The control program is running in the CCU.
2. The CA is initialized.
3. The CA is connected.
ENABLING/DISABLING (ENA/ENB/DSA/DSB)
Send an enable or disable request to the CA. (ENA/OSA are
for interface A, and ENB/OSB are for interface B.)
SEND I/O ERROR ALERT (SEA)
INITIALIZE (INI)
RESET (RST)
DUMP (DMP)
Requests the CA to send an I/O error alert to the connected
host. This command is accepted only if I/O error alert
=
Y
has been specified in the COF.
Initializes the CA. It is accepted only if the CA is in the
reset state, and should be used only with the concurrent
maintenance option.
Generates a power ON/reset signal. After execution of the
command, the status can become reset or errckout.
This command should be used only if the CA is out of
chains, otherwise the chain will become DOWN and unpre-
dictable results may occur on the other CAs of the bus.
This command allows dumping the CA RAM into
th~
appro-
priate CA dump file (CHGCAOSA for CCU-A CHGCAOSB for
CCU-B). It has no impact on the status.
START TRACE (STT)
STOP TRACE (SPT)
The trace will be recorded in the CA RAM, in wraparound
mode. It can be retrieved either by the display trace data
command (OTO), or by the display RAM storage (OST).
Note: From NCP V5R2.1, the CA trace is also automatically
and independently started/stopped with the MOSS data
exchange (OEX) function.
Stops an active trace (See previous note).
Chapter 10.
CA
Services
10-5