storage
subsystem
and
all
its
attached
storage
expansion
enclosures
will
have
power
if
only
one
power
circuit
is
available.
In
addition,
having
all
the
right
or
all
the
left
power
supplies
plugged
into
the
same
power
circuit
will
enable
the
components
in
the
storage
subsystem
to
power
on
simultaneously
during
an
unattended
restoration
of
power.
See
Figure
72
on
page
86
for
an
example
of
redundant
power
connections.
Storage
subsystem
components
The
following
sections
show
the
components
of
the
DS4300
storage
subsystem.
Note:
The
graphics
used
in
this
document
are
for
illustrative
purposes
only.
The
appearance
of
the
actual
device
may
differ
from
the
graphic.
All
DS4300
storage
subsystem
models
support
hot-swap
fibre
channel
hard
drive
CRUs
and
cooling
fan
CRUs,
so
you
can
remove
and
replace
these
components
without
turning
off
the
storage
subsystem.
In
addition,
the
DS4300
storage
subsystem
models
60X
and
60U
support
hot-swap
power
supplies
and
RAID
controller
CRUs.
Attention:
The
DS4300
single-controller
storage
subsystem
(model
6LU
and
6LX)
has
one
power
supply
and
one
controller;
therefore,
you
cannot
hot
swap
these
components.
Front
view
Figure
1
shows
the
components
and
controls
on
the
front
of
the
DS4300
storage
subsystem.
Note:
The
graphics
used
in
this
document
are
for
illustrative
purposes
only.
The
appearance
of
the
actual
device
may
differ
from
the
graphic.
Power-on
LED
When
on,
this
green
light
indicates
that
the
unit
has
good
dc
power.
The
DS4300
single-controller
storage
subsystem
(model
6LU
and
6LX)
has
a
single
power
supply
therefore;
when
the
power
supply
fails,
the
General-system-error
LED
and
the
Power-on
LED
are
not
lit.
Hot-swap
drive CRU
Tray handle
Latch
Drive activity LED
Drive fault LED
Power-on LED
General-system-
error LED
Locator LED
Figure
1.
DS4300
storage
subsystem
front
controls
and
components
Chapter
1.
Introduction
11
Summary of Contents for TotalStorage DS4300 Turbo
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