Appendix
D.
Known
problems
This
chapter
describes
known
Cluster
1350
problems
and
resolutions.
Use
this
chapter
to
troubleshoot
hardware
errors.
Node
Amber
light
on
node
There
is
an
amber
warning
light
on
the
node
to
indicate
the
log
file
is
either
at
75%
or
100%
full.
To
turn
off
the
LED,
clear
the
log.
There
is
a
setting
to
wrap
the
log
file
so
the
LED
never
registers
if
the
file
is
full:
1.
Boot
using
the
xSeries
335
Service
Processor
Firmware
diskette.
2.
In
the
Main
Menu,
select
Configuration
Settings
.
3.
In
the
Configuration
Menu,
select
General
Settings
.
4.
Set
the
75%
Full
and
Log
Full
setting
to
No
.
COM
port
settings
in
BIOS
The
COM
Port
settings
for
the
cluster
node
should
be:
COM
Port
1/A
2E8
COM
Port
2/B
2F8
Move
the
serial
port
jumper
from
port
A
to
port
B
on
cluster
nodes.
CSM
Stale
NFS
mounts
Existing
NFS
mounted
file
systems
are
inaccessible
after
a
CSM
installation
on
a
cluster
node.
1.
Remount
the
NFS
file
systems.
2.
If
there
is
an
existing
/tftpboot
partition
on
cluster
nodes,
an
error
is
displayed
on
the
console
during
CSM
installation
on
the
cluster
node.
Even
though
an
error
is
displayed,
the
CSM
installation
was
still
successful
rpower
hard
shut
down
The
rpower
command
performs
a
hard
shut
down.
To
shut
down
the
OS
prior
to
issuing
the
rpower
command
issue
the
following
command:
dsh
-a
’/sbin/init
0’
Storage
Driver
module
ordering
During
a
standard
install
on
the
storage
nodes
the
system
will
attempt
to
boot
from
disk
located
in
the
FAStT
storage
device
connected
to
the
Qlogic
Fibre
Channel
(FC)
Controller
instead
of
the
local
SCSI
drive
connected
to
the
internal
Adaptec
SCSI
controller.
Why
this
happens
is
as
follows:
©
Copyright
IBM
Corp.
2004
79
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