The
SPARC
M10
systems
are
designed
to
function
in
an
environment
with
natural
convection
airflow.
The
following
requirements
must
be
followed
to
meet
the
environmental
specifications.
■
Ensuring
sufficient
airflow
for
the
entire
system
Each
chassis
is
equipped
with
a
cooling
function
for
front-to-rear
cooling.
Each
chassis
has
air
vents
on
the
front.
Exhaust
is
expelled
from
the
rear
of
each
chassis.
The
SPARC
M10
systems
use
internal
fans
whose
airflow
reaches
the
maximum
exhaust
airflow
shown
in
under
normal
operating
conditions.
Example:
17.1
m
3
(603.8
ft.
3
)
per
minute
for
each
SPARC
M10-4/SPARC
M10-4S
unit
■
Ensuring
that
temperature
at
the
intake
part
of
each
chassis
does
not
exceed
the
limit
value
Other
devices
mounted
in
the
rack
must
not
cause
the
temperature
at
the
intake
part
of
any
chassis
to
exceed
the
limit
value.
This
limit
value
in
environmental
conditions
assumes
that
each
chassis
operates
with
the
rack
door
closed.
2.8
Checking
the
Power
Input
Type
This
section
describes
the
power
input
types
that
can
be
used
with
the
SPARC
M10
systems.
To
prevent
serious
accidents,
confirm
that
the
power
supply
facilities
can
supply
sufficient
redundant
power
to
the
system.
The
server
can
use
the
following
power
input
types:
■
Redundant
configuration
of
power
supply
units
■
Dual
power
feed
■
Three-phase
power
feed
■
Uninterruptible
power
supply
(UPS)
connection
(optional)
2.8.1
Redundant
configuration
of
power
supply
units
Each
chassis
has
power
supply
units
in
a
redundant
configuration
as
standard.
If
a
failure
occurs
in
one
power
supply
unit,
the
system
can
still
continue
to
operate
with
the
other
power
supply
unit.
However,
if
a
failure
occurs
in
the
external
power
supply,
the
system
stops.
,
and
show
power
supply
systems
with
redundant
power
supply
connections.
When
connecting
the
power
cords
to
the
same
input
power
supply,
make
sure
to
connect
each
power
cord
to
the
connection
destination
in
a
one-to-one
manner.
Chapter
2
Planning
and
Preparing
for
System
Installation
43
Summary of Contents for M10 Series
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