v
No
:
You
cannot
continue
isolating
the
problem.
Use
the
original
SRC
and
exchange
the
failing
items,
starting
with
the
highest
probable
cause
of
failure
(see
the
failing
item
list
for
this
reference
code
in
the
topic.
If
the
failing
item
list
contains
FI
codes,
see
to
help
determine
part
numbers
and
location
in
the
system.
This
ends
the
procedure.
5.
Record
the
SRC
on
the
Problem
summary
form
(see
Is
the
SRC
the
same
one
that
sent
you
to
this
procedure?
v
Yes
:
Determine
the
device
unit
reference
code
(URC)
from
the
SRC.
If
the
Disk
Configuration
Error
Report,
the
Disk
Configuration
Attention
Report,
or
the
Disk
Configuration
Warning
Report
display
appears
on
the
console,
the
device
URC
is
displayed
under
Reference
Code
.
This
is
on
the
same
line
as
the
missing
device.
Is
the
device
unit
reference
code
3020
,
3021
,
3022
,
or
3023
?
–
Yes
:
Continue
with
the
next
step.
–
No
:
Go
to
step
7
(See
page
v
No
:
A
different
SRC
or
reference
code
occurred.
Use
the
new
SRC
or
reference
code
to
correct
the
problem
(see
This
ends
the
procedure.
6.
A
unit
reference
code
of
3020
,
3021
,
3022
,
or
3023
indicates
that
there
is
a
problem
on
an
I/O
card
SCSI
bus.
The
problem
can
be
caused
by
a
device
that
is
attached
to
the
I/O
card
that:
v
Is
not
supported.
v
Does
not
match
system
configuration
rules.
For
example,
there
are
too
many
devices
that
are
attached
to
the
bus.
v
Is
failing.
Perform
the
following:
a.
Look
at
the
characters
on
the
control
panel
Data
display
or
the
Problem
Summary
Form
for
characters
9
-
16
of
the
top
16
character
line
of
function
12
(word
3).
Use
the
format
BBBB-Cc-bb
(BBBB
=
bus,
Cc
=
card,
bb
=
board)
to
determine
the
card
slot
location
for
the
I/O
card
(see
b.
The
unit
reference
code
indicates
the
SCSI
bus
that
has
the
problem:
URC
SCSI
Bus
3020
0
3021
1
3022
2
3023
3
c.
To
find
the
bus
and
device
locations,
see
d.
Find
the
printout
that
shows
the
system
configuration
from
the
last
IPL
and
compare
it
to
the
present
system
configuration.
Note:
If
configuration
is
not
the
problem,
a
device
on
the
SCSI
bus
may
be
failing.
e.
If
you
need
to
perform
isolation
on
the
SCSI
bus,
go
to
This
ends
the
procedure.
7.
The
possible
failing
items
are
FI
codes
FI01105
(90%)
and
FI01112
(10%).
Find
the
device
unit
address
from
the
SRC
(see
Use
this
information
to
find
the
physical
location
of
the
device.
Record
the
type
and
model
numbers
to
determine
if
the
addressed
I/O
card
supports
this
device.
Is
the
device
given
support
on
your
system?
v
Yes
:
Perform
the
following:
a.
Exchange
the
device.
b.
Perform
an
IPL
to
DST
(see
in
the
iSeries
Service
Functions
196
iSeries:
iSeries
Server
270,
800,
810,
820,
825,
830,
840,
870,
890,
SB2,
and
SB3
Hardware
Problem
Analysis
and
Isolation