IBM 8480 Hardware Maintenance Manual - Page 111

other, listed, CAUTION, press, Doing, change, server's, configuration.

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Table 3. SCSI identifier (continued) SCSI Channel Code (z) D E F Descriptions Channel 1, 3, & 4 Channel 2, 3, & 4 Channel 1, 2, 3, & 4 b. Confirm that the channel(s) identified from the error in step 2a on page 100 is (are) the cause of the error by verifying that the error presents itself only when the offending channel is reconnected. c. Check termination of identified channel. Note: SCSI channel termination details, if any, appear elsewhere in this publication. d. Check for proper backplane jumper configuration. Note: SCSI channel jumper details, if any, appear elsewhere in this publication. e. Check for proper cabling configuration in systems that use hard disk drive status cables. Reconnect all cables removed in step 1 on page 100. f. Disconnect one drive at a time attached to the channel identified in step 2a on page 100; then, reboot to determine which drive is causing the error. g. Replace hard disk drive cable. h. Replace hard disk drive backplane. FFFF or other code not listed 1. Place download jumpers on the controller and try to flash the firmware code to the card. 2. Isolate between SCSI subsystem and controller by disconnecting all hard disk drive cables attached to the suspect card, and reboot. CAUTION: Do not press F5. Doing so will change the server's configuration. If ISPR code is EF10 after disconnecting cables, follow the steps below until the error is eliminated: a. Identify which channel is causing the error by reconnecting cables one at a time and rebooting until the error returns. b. Check termination of identified channel in step 2a. Note: SCSI channel termination details, if any, appear elsewhere in this publication. c. Disconnect one drive at a time attached to channel identified in step 2a and reboot each time to determine which drive is causing the problem. d. Replace hard disk drive cable attached to channel identified in step 2a. e. Replace backplane attached to channel identified in step 2a. 3. If original ISPR code is still present after disconnecting all hard disk drive cables and rebooting, perform the following actions until the error is no longer present: v Reseat the controller v Replace the controller Chapter 6. Symptom-to-FRU index 101

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Table
3.
SCSI
identifier
(continued)
SCSI
Channel
Code
(z)
Descriptions
D
Channel
1,
3,
&
4
E
Channel
2,
3,
&
4
F
Channel
1,
2,
3,
&
4
b.
Confirm
that
the
channel(s)
identified
from
the
error
in
step
2a
on
page
100
is
(are)
the
cause
of
the
error
by
verifying
that
the
error
presents
itself
only
when
the
offending
channel
is
reconnected.
c.
Check
termination
of
identified
channel.
Note:
SCSI
channel
termination
details,
if
any,
appear
elsewhere
in
this
publication.
d.
Check
for
proper
backplane
jumper
configuration.
Note:
SCSI
channel
jumper
details,
if
any,
appear
elsewhere
in
this
publication.
e.
Check
for
proper
cabling
configuration
in
systems
that
use
hard
disk
drive
status
cables.
Reconnect
all
cables
removed
in
step
1
on
page
100.
f.
Disconnect
one
drive
at
a
time
attached
to
the
channel
identified
in
step
2a
on
page
100;
then,
reboot
to
determine
which
drive
is
causing
the
error.
g.
Replace
hard
disk
drive
cable.
h.
Replace
hard
disk
drive
backplane.
FFFF
or
other
code
not
listed
1.
Place
download
jumpers
on
the
controller
and
try
to
flash
the
firmware
code
to
the
card.
2.
Isolate
between
SCSI
subsystem
and
controller
by
disconnecting
all
hard
disk
drive
cables
attached
to
the
suspect
card,
and
reboot.
CAUTION:
Do
not
press
F5.
Doing
so
will
change
the
server’s
configuration.
If
ISPR
code
is
EF10
after
disconnecting
cables,
follow
the
steps
below
until
the
error
is
eliminated:
a.
Identify
which
channel
is
causing
the
error
by
reconnecting
cables
one
at
a
time
and
rebooting
until
the
error
returns.
b.
Check
termination
of
identified
channel
in
step
2a.
Note:
SCSI
channel
termination
details,
if
any,
appear
elsewhere
in
this
publication.
c.
Disconnect
one
drive
at
a
time
attached
to
channel
identified
in
step
2a
and
reboot
each
time
to
determine
which
drive
is
causing
the
problem.
d.
Replace
hard
disk
drive
cable
attached
to
channel
identified
in
step
2a.
e.
Replace
backplane
attached
to
channel
identified
in
step
2a.
3.
If
original
ISPR
code
is
still
present
after
disconnecting
all
hard
disk
drive
cables
and
rebooting,
perform
the
following
actions
until
the
error
is
no
longer
present:
v
Reseat
the
controller
v
Replace
the
controller
Chapter
6.
Symptom-to-FRU
index
101