Preparing
the
rack
(system
or
expansion)
Perform
the
following
steps
to
prepare
the
rack
(system
or
expansion):
1.
Find
the
two
support
rails
5
that
are
supplied
with
the
2104
Model
DS4.
See
Figure
17
on
page
2.
2.
The
2104
Model
DS4
is
three
Electronics
Industries
Association
(EIA)
units
high.
Using
the
preinstallation
planning
information,
or
other
relevant
information,
determine
where
you
are
going
to
locate
the
2104
Model
DS4
in
the
rack.
Notes:
a.
If
you
are
installing
the
2104
Model
DS4
into
an
empty
rack,
install
it
into
the
lowest
available
position
so
that
the
rack
does
not
become
unstable.
b.
If
you
are
installing
more
than
one
2104
Model
DS4
into
the
rack,
start
at
the
lowest
available
position,
and
work
upward.
c.
You
might
need
to
remove
the
power
distribution
unit
before
you
install
the
support
rails.
See
the
installation
and
service
guide,
or
equivalent,
for
the
rack.
3.
Refer
to
the
EIA
markings
on
the
rack
and
decide
where
you
are
going
to
install
the
support
rails.
If
appropriate,
allow
for
possible
future
installation
of
other
disk
enclosures.
4.
Perform
the
following
steps
for
each
support
rail:
a.
Attach
the
nut
clips
2
at
the
selected
holes
in
the
front
of
the
rack.
See
Figure
18.
These
nut
clips
must
align
with
the
upper
and
lower
holes
in
the
support
rail.
4
4
2
1
6
5
3
SC000922
Figure
18.
Installing
the
support
rails
Installing
a
2104
Model
DS4
3
Summary of Contents for 2104 Model DS4
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