General
requirements
for
racks
If
you
intend
to
install
BladeCenter
T
units
in
a
rack
other
than
an
IBM
NetBAY
rack,
verify
that
the
rack
meets
these
requirements:
v
The
rack-mounting
flanges
have
holes
and
clearances
per
EIA-310-D.
v
Sufficient
room
in
front
of
the
front
EIA
flange
to
provide
bezel
clearance.
EIA-310-D
requires
this
space
to
be
a
minimum
of
49
mm
deep.
v
Sufficient
room
behind
the
rear
of
the
rear
EIA
flanges
to
provide
room
for
cable
management
and
routing.
v
Rack
should
provide
an
adequate
flow
of
cooling
air
and
prevent
recirculation
of
warm
air
from
the
rear
to
the
front.
v
Racks
doors
must
be
perforated.
v
Rack
weight-handling
capacity
should
be
sufficient
for
the
aggregate
weight
of
the
BladeCenter
T
units,
blade
servers,
power
distribution
units,
and
power
cables.
v
Racks
need
to
be
stabilized
so
that
the
rack
does
not
become
unstable
when
fully
loaded.
Notes:
1.
IBM
has
tested
and
offers
rack
kits
for
NEBS
and
ETSI
Seismic
racks.
Do
not
place
racks
directly
against
a
wall
because,
if
service
is
needed,
the
service
representative
will
need
access
to
the
back
of
the
BladeCenter
T
unit.
2.
All
equipment
installed
in
a
UTF
or
2-
or
4-post
racks
has
to
be
removed
from
the
rack,
and
then
the
rack
can
be
moved
to
its
new
location.
These
racks
must
be
bolted
to
the
floor
and
then
the
equipment
can
be
installed
in
the
racks
again.
Power
considerations
for
Type
8720
The
BladeCenter
T
Type
8720
has
redundant
power
modules.
DC
power
resources
must
be
adequate
to
not
only
supply
the
required
voltage
and
amperage,
but
should
also
be
designed
to
take
advantage
of
the
power
redundancy
provided
by
the
BladeCenter
T
unit.
Table
13
on
page
57
shows
how
power
is
provided
to
the
BladeCenter
T
components.
56
BladeCenter
T
Types
8720
and
8730:
Planning
and
Installation
Guide
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