Power cabling, Power, Cabling – IBM Partner Pavilion DS4100 User Manual
Page 93: Cord, Locations
Power
cabling
The
DS4100
base
storage
server
uses
two
standard
power
cords,
and
the
single-controller
storage
server
uses
only
one.
You
can
connect
the
power
cords
to
a
primary
power
unit
inside
the
rack
cabinet,
such
as
a
properly
grounded
ac
distribution
unit,
or
to
an
external
source,
such
as
a
properly
grounded
electrical
outlet.
The
DS4100
storage
server
does
not
ship
with
power
cords.
Refer
to
for
the
list
of
IBM-approved
power
cords
for
your
region.
Depending
on
your
model,
the
DS4100
storage
server
does
ship
with
one
or
two
line
jumper
cords
for
connecting
the
DS4100
power
supply
or
power
supplies
to
an
IBM-approved
rack
power
distribution
unit.
If
you
have
not
already
done
so,
attach
the
power
cords
by
using
for
the
location
of
the
component
parts.
Perform
the
following
to
cable
the
power
cords:
1.
Connect
the
power
cord
to
the
power
supply.
2.
Remove
the
nut
that
holds
the
power
cable
strain-relief
clamp,
and
then
remove
the
strain-relief
clamp.
3.
Wrap
the
strain-relief
clamp
around
the
power
cord
approximately
20
cm
(8
in.)
from
the
power
supply
connection
end.
Leave
some
slack
between
the
clamp
and
the
power-supply
end
of
the
power
cord.
4.
Replace
the
power
cable
strain-relief
clamp,
and
tighten
it
securely
with
the
nut.
5.
Plug
the
power
cord
into
a
properly
grounded
electrical
outlet.
Note:
To
maintain
power
redundancy,
plug
the
storage
server’s
right
and
left
power
supplies
into
two
independent
external
power
circuits
through
ac
distribution
units
inside
a
rack
cabinet
or
directly
into
external
receptacles.
Similarly,
the
right
and
left
power
supplies
of
the
DS4000
storage
expansion
units
attached
to
the
DS4100
should
be
plugged
into
the
same
two
independent
external
power
circuits
as
the
DS4100.
It
is
recommended
that
you
determine
the
maximum
surge
current
possible
when
all
devices
in
the
power
circuit
are
started
at
the
same
time.
Based
on
the
total
number
of
devices
on
a
power
circuit,
find
the
maximum
(worst-case)
specification
value
in
order
to
prevent
the
circuit
from
tripping.
When
both
power
supplies
are
connected
and
the
storage
server
is
powered
on,
each
power
supply
unit
will
handle
approximately
AC power
connector
AC power
switch
Strain-relief
clamp
Lever
-
f10ug027
Figure
55.
Power
cord
locations
Chapter
3.
Cabling
the
storage
server
61