v
Yes
:
Continue
with
the
next
step.
v
No
:
Go
to
step
25
(See
page
24.
Does
the
system
continue
normal
operation
in
3
to
4
minutes?
v
No
:
Go
to
step
26
(See
page
v
Yes
:
Go
to
step
28
(See
page
25.
When
the
9337
Disk
Unit
Data
display
contains
the
value
B000,
the
disk
unit
has
reached
a
ready
status,
but
the
system
has
not
taken
the
ready
status
messages.
Does
the
9337
Disk
Unit
Data
display
contain
the
value
B000
in
less
than
4
minutes?
v
Yes
:
Continue
with
the
next
step.
v
No
:
Use
the
service
information
for
the
specific
disk
unit
to
analyze
the
status
of
the
failing
unit.
This
ends
the
procedure.
26.
Perform
the
following:
a.
Check
the
cable
connections
between
all
of
the
units
on
the
storage
device
I/O
processor
card
that
is
connected
to
the
failing
unit.
b.
Correct
any
loose
connections
and
ensure
that
the
terminating
plug
is
installed
tightly.
c.
Check
the
address
switches
on
the
backs
of
all
of
the
units
connected
to
the
magnetic
storage
I/O
processor
card
that
is
connected
to
the
failing
disk
unit.
Notes:
1)
If
the
device
does
not
have
address
switches,
continue
with
the
next
step
of
this
procedure
if
you
are
servicing
one
of
these
units.
2)
Ensure
that
each
address
switch
displays
the
correct
number.
See
the
system
configuration
list.
The
latest
level
printout
should
be
stored,
ask
the
customer
for
this
data.
d.
If
two
or
more
address
switches
display
the
same
number,
change
the
address
number
of
one
or
more
units
so
that
each
address
switch
displays
the
correct
number
(see
the
system
configuration
list).
e.
For
each
unit
that
had
its
address
switch
changed,
set
the
unit
Power
switch
off,
then
on
again.
27.
Does
the
system
continue
normal
operation
in
3
to
4
minutes?
v
No
:
Set
the
Power
switch
on
the
disk
unit
to
the
Off
position,
then
to
the
On
position.
Does
the
system
continue
normal
operation
in
3
to
4
minutes?
–
Yes
:
Continue
with
the
next
step.
–
No
:
Go
to
step
29
(See
page
v
Yes
:
Continue
with
the
next
step.
28.
Intermittent
equipment
checks
may
have
caused
this
problem.
Display
the
system
product
activity
log
and
look
for
entries
that
contain
unit
reference
codes
or
IOP
reference
codes
that
may
need
action.
You
can
read
a
unit
reference
code
history
from
the
disk
controller
service
panel.
This
ends
the
procedure.
29.
Fill
out
a
Problem
summary
form
using
the
information
from
words
1
through
9
from
the
control
panel.
Are
characters
5-8
of
the
top
16
character
line
of
function
11
(4
rightmost
characters
of
word
1)
on
the
Problem
Summary
Form
the
same
as
on
the
Problem
Summary
Form
filled
out
in
step
3
(See
page
v
Yes
:
Continue
with
the
next
step.
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.
30.
Are
words
3
-
9
on
the
Problem
summary
form
the
same
as
on
the
Problem
Summary
Form
filled
out
in
step
3
(See
page
v
Yes
:
Continue
with
the
next
step.
142
iSeries:
iSeries
Server
270,
800,
810,
820,
825,
830,
840,
870,
890,
SB2,
and
SB3
Hardware
Problem
Analysis
and
Isolation
