and
Perform
the
remaining
steps
of
this
procedure
after
you
exchange
each
FRU
until
you
determine
the
failing
FRU.
Note:
If
you
exchange
a
disk
unit,
do
not
attempt
to
save
customer
data
until
instructed
to
do
so
in
this
procedure.
11.
Power
on
the
system
or
the
expansion
tower.
Does
an
SRC
appear
on
the
control
panel?
v
No
:
Continue
with
the
next
step.
v
Yes
:
Go
to
step
13
(See
page
12.
Does
either
the
Disk
Configuration
Error
Report,
the
Disk
Configuration
Attention
Report,
or
the
Disk
Configuration
Warning
Report
display
appear
on
the
console?
v
No
:
Look
at
the
product
activity
log.
See
for
details.
Is
an
SRC
logged
as
a
result
of
this
IPL?
–
Yes
:
Continue
with
the
next
step.
–
No
:
The
last
FRU
you
exchanged
was
failing.
Note:
Before
exchanging
a
disk
unit,
you
should
attempt
to
save
customer
data.
Go
to
Disk
unit
under
before
exchanging
a
disk
unit.
This
ends
the
procedure.
v
Yes
:
Select
option
5
,
press
F11
,
then
press
Enter
to
display
the
details.
Then,
choose
from
the
following
options:
–
If
all
of
the
reference
codes
are
0000,
go
to
and
use
cause
code
0002.
–
If
any
of
the
reference
codes
are
not
0000,
go
to
step
9
(See
page
and
use
the
reference
code
that
is
not
0000.
Note:
Use
the
characters
in
the
Type
column
to
find
the
correct
reference
code
table.
13.
Record
the
SRC
on
the
Problem
summary
form
(see
Is
the
SRC
the
same
one
that
sent
you
to
this
procedure?
v
No
:
Is
the
SRC
B100
4504
or
B100
4505
and
have
you
exchanged
disk
unit
1
in
the
system
unit,
or
are
all
the
reference
codes
on
the
console
0000?
–
Yes
:
The
last
FRU
you
exchanged
was
failing.
Note:
Before
exchanging
a
disk
unit,
you
should
attempt
to
save
customer
data.
Go
to
Disk
unit
under
before
exchanging
a
disk
unit.
This
ends
the
procedure.
–
No
:
Use
the
new
SRC
or
reference
code
to
correct
the
problem.
See
This
ends
the
procedure.
v
Yes
:
The
last
FRU
you
exchanged
is
not
the
failing
FRU.
Go
to
step
10
(See
page
to
continue
FRU
isolation.
SDIOP-PIP13:
For
use
by
authorized
service
providers.
Use
this
procedure
to
isolate
problems
on
the
interface
between
the
I/O
card
and
the
storage
devices
when
the
I/O
card
is
the
most
probable
failing
item.
The
unit
reference
code
(part
of
the
SRC
that
sent
you
to
this
procedure)
indicates
the
SCSI
bus
that
has
the
problem:
Unit
reference
code
(URC)
SCSI
bus
3100
0
3101
1
Analyze
hardware
problems
189