Heat
output
of
each
SAN
Volume
Controller
2145-4F2
node
Model
Heat
output
per
node
SAN
Volume
Controller
2145-4F2
350
W
(1200
Btu
per
hour)
SAN
Volume
Controller
2145-4F2
controls
and
indicators
All
controls
and
indicators
are
located
on
the
front
panel
of
the
SAN
Volume
Controller
2145-4F2.
SAN
Volume
Controller
2145-4F2
controls
and
indicators
1
Power
button
2
Power
LED
3
Check
LED
4
Navigation
buttons
5
Select
button
6
Front
panel
display
7
Node
identification
label
Power
button
The
power
button
switches
on
or
off,
the
main
power
to
the
SAN
Volume
Controller
2145-4F2.
To
turn
on
the
power,
press
and
release
the
power
button.
To
turn
off
the
power,
press
and
release
the
power
button.
For
a
preferred
method
of
powering
off,
see
the
“Powering
off
a
SAN
Volume
Controller
node”
topic
in
the
IBM
System
Storage
SAN
Volume
Controller:
Service
Guide
.
Note:
When
the
SAN
Volume
Controller
is
operational
and
the
power
control
button
is
pressed,
the
SAN
Volume
Controller
indicates
on
its
front
panel
that
it
is
powering
off
and
writes
its
control
data
to
its
internal
disk.
This
can
take
up
to
five
minutes.
If
the
power
control
button
is
pressed
and
not
released,
an
immediate
power
off
is
performed
without
writing
the
SAN
Volume
Controller
control
data
to
disk.
Service
actions
are
then
required
to
make
the
SAN
Volume
Controller
operational
again.
Therefore,
when
powering
off,
you
should
not
press
and
hold
the
power
button
for
more
than
two
seconds.
2145
5
1
6
2
7
3
4
Appendix
B.
SAN
Volume
Controller
2145-4F2
103
Summary of Contents for 2145UPS-1U
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