location
of
the
Needs
Attention
LED
on
the
back
of
a
controller.)
3.
Is
the
Service
Action
Allowed
status
LED
turned
on?
shows
the
location
of
the
Service
Action
Allowed
status
LED
on
the
back
of
a
controller.)
v
Yes
–
Go
to
step
v
No
–
Another
component
requires
attention
before
you
can
remove
the
controller.
Normally,
this
situation
indicates
that
a
power
supply
and
fan
unit
is
either
powered
off
or
failed.
Ensure
that
both
power
supply
and
fan
units
are
powered
on
and
in
an
optimal
state.
If
the
Service
Action
Allowed
status
LED
of
the
failed
controller
is
unlit
and
both
power
supply
and
fan
units
are
in
an
optimal
state,
contact
your
IBM
support
representative.
Electrostatic
discharge
can
damage
sensitive
components.
Touching
the
storage
subsystem
or
its
components
without
using
a
proper
ground
might
damage
the
equipment.
To
avoid
damage,
use
proper
antistatic
protection
while
handling
any
components.
4.
Put
on
antistatic
protection.
5.
Unpack
the
new
controller.
Save
all
packing
materials
in
the
event
you
need
to
return
the
new
controller.
6.
Determine
whether
the
replacement
controller
will
serve
as
controller
A
or
controller
B.
(Controller
A
is
inserted
in
the
top
controller
bay;
controller
B
is
inserted
in
the
bottom
controller
bay.)
Then
apply
the
controller
labels
for
host
channels,
drive
channels,
power
inputs,
and
numeric
display
to
the
replacement
controller.
The
controller
labels
and
instructions
are
included
with
the
replacement
controller.
Make
sure
that
the
labels
are
aligned
properly
and
do
not
cover
any
ports
or
LEDs.
Attention:
Handle
and
install
fiber-optic
cables
properly
to
avoid
degraded
performance
or
loss
of
communications
with
devices.
When
working
with
fiber-optic
cables,
do
not
pinch
them,
step
on
them,
or
locate
them
in
aisles
or
walkways.
Do
not
overtighten
the
cable
straps
or
bend
the
cables
to
a
radius
smaller
than
38
mm
(1.5
in.).
7.
Disconnect
all
attached
interface
cables
from
the
failed
controller,
including
the
SFP
modules.
Ensure
that
you
label
each
cable
so
that
you
can
reconnect
them
correctly
to
the
new
controller.
shows
the
location
of
the
connectors
on
the
back
of
a
controller.
76037
Needs Attention
LED (amber)
Service Action
Allowed LED (blue)
Needs Attention
LED (amber)
Service Action
Allowed LED (blue)
Controller A
Controller B
ds48048
Figure
86.
RAID
controller
Needs
Attention
and
Service
Action
Allowed
LEDs
146
IBM
System
Storage
DS4800
Storage
Subsystem:
Installation,
User’s,
and
Maintenance
Guide
Содержание TotalStorage DS4800
Страница 1: ...IBM System Storage DS4800 Storage Subsystem Installation User s and Maintenance Guide GC26 7845 01...
Страница 2: ......
Страница 3: ...IBM System Storage DS4800 Storage Subsystem Installation User s and Maintenance Guide GC26 7845 01...
Страница 18: ...xvi IBM System Storage DS4800 Storage Subsystem Installation User s and Maintenance Guide...
Страница 168: ...140 IBM System Storage DS4800 Storage Subsystem Installation User s and Maintenance Guide...
Страница 216: ...188 IBM System Storage DS4800 Storage Subsystem Installation User s and Maintenance Guide...
Страница 220: ...192 IBM System Storage DS4800 Storage Subsystem Installation User s and Maintenance Guide...
Страница 240: ...212 IBM System Storage DS4800 Storage Subsystem Installation User s and Maintenance Guide...
Страница 246: ...218 IBM System Storage DS4800 Storage Subsystem Installation User s and Maintenance Guide...
Страница 249: ......
Страница 250: ...Part Number 22R6614 Printed in USA GC26 7845 01 1P P N 22R6614...
