![background image](http://html2.mh-extra.com/html/ibm/system-storage-ds4000/system-storage-ds4000_hardware-maintenance-manual_3312302095.webp)
Drive
fault
LED
Each
drive
CRU
has
an
amber
Drive
fault
LED.
When
on,
this
amber
LED
indicates
a
drive
failure.
When
flashing,
this
amber
LED
indicates
that
a
drive
identify
is
in
progress.
Latch
This
multipurpose
blue
latch
releases
or
locks
the
drive
CRU
in
place.
Tray
handle
You
can
use
this
multipurpose
handle
to
insert
and
remove
a
drive
CRU
in
the
bay.
For
information
on
how
to
install
and
replace
drive
CRUs,
see
the
IBM
TotalStorage
DS4300
Fibre
Channel
Storage
Server
Installation
and
User’s
Guide
.
For
more
information
about
the
LEDs,
see
“Checking
the
LEDs”
on
page
71.
Back
view
Figure
47
shows
the
components
at
the
back
of
the
DS4300
dual-controller
storage
server
(model
60U
and
60X).
Figure
48
on
page
68
shows
the
components
at
the
back
of
the
DS4300
single-controller
storage
server
(model
6LU
and
6LX).
Hot-swap fan bays
Hot-swap
power supplies
Raid controllers
Figure
47.
DS4300
dual-controller
storage
server
(model
60U
and
60X)
back
view
Chapter
9.
Type
1722
DS4300
Storage
Server
67
Summary of Contents for System Storage DS4000
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