Gb/s
or
2
Gb/s
fibre
channel
interface
to
the
DS4000
storage
server
drive
loop
ports.
The
DS4000
EXP710
provides
a
2
Gb/s
fibre
channel
interface
only
to
the
DS4000
storage
server
drive
loop
ports.
Attention:
After
you
remove
an
ESM,
wait
70
seconds
before
reseating
or
replacing
the
ESM.
Failure
to
do
so
may
cause
undesired
events.
Each
ESM
has
two
SFP
module
connector
ports
for
connecting
your
storage
expansion
enclosure
to
the
controller
or
connecting
two
or
more
storage
expansion
enclosures
together.
The
ESMs
provide
redundancy
when
both
of
them
are
configured
into
redundant
fibre
channel
loops.
See
your
fibre
channel
controller
documentation
to
determine
if
the
controller
supports
this
redundancy
function.
Note:
The
DS4000
EXP700
and
EXP710
ESMs
are
not
interchangeable.
In
addition,
you
cannot
mix
DS4000
EXP700
and
DS4000
EXP710
ESMs
in
the
same
storage
expansion
enclosure.
Always
verify
that
you
have
the
correct
FRU
P/N
before
you
order
replacement
ESMs
or
insert
replacement
ESMs
in
the
storage
expansion
enclosure.
Your
storage
expansion
enclosure
ESMs
come
with
locking
latches
to
secure
the
ESMs
to
the
storage
expansion
enclosure
bays.
The
latch
must
be
unlocked
before
the
ESM
can
be
removed
from
the
storage
expansion
enclosure.
v
Hot-swap
power-supply
bays:
Your
storage
expansion
enclosure
comes
with
two
hot-swap
and
redundant
power
supplies.
The
power
supplies
are
located
in
the
hot-swap
power-supply
bays.
Both
power
supplies
must
be
installed
in
your
storage
expansion
enclosure,
even
if
one
power
supply
is
not
operational.
Front
controls
and
indicators
This
section
describes
the
primary
controls
on
the
front
of
the
storage
expansion
enclosure.
The
location
of
these
primary
controls
are
shown
in
v
Drive
Activity
LED:
Each
drive
CRU
has
a
DriveActivity
LED.
When
flashing,
this
green
LED
indicates
drive
activity.
When
lit,
this
green
LED
indicates
the
drive
is
properly
installed
and
powered
on.
v
Blank
tray:
Storage
expansion
enclosures
come
with
blank
trays
in
the
unused
drive
bays.
To
begin
installing
new
drives,
you
must
first
remove
the
blank
trays
and
save
them.
Each
of
the
14
bays
must
always
contain
either
a
blank
tray
or
a
drive
CRU
to
ensure
proper
air
flow
across
the
drives
and
to
comply
with
regulatory
electromagnetic
emission
limits.
Activity LED
Drive CRU
Tray handle
Latch
Fault LED
Power-on LED
General system
error LED
Enclosure
Identity LED
Bezel
Blank tray
e
xp70005
Figure
4.
Front
controls
and
indicators
Chapter
1.
Introduction
7
Summary of Contents for TotalStorage DS4000 EXP710
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