Attention:
If
a
SAN
Volume
Controller
is
powered
off
for
more
than
five
minutes
and
it
is
the
only
SAN
Volume
Controller
that
is
connected
to
an
2145
uninterruptible
power
supply
(2145
UPS),
the
2145
UPS
also
powers
off.
To
power
on
the
SAN
Volume
Controller,
you
must
first
power
on
the
2145
UPS
to
which
it
is
connected.
Note:
The
2145
uninterruptible
power
supply-1U
(2145
UPS-1U)
does
not
power
off
when
the
SAN
Volume
Controller
is
shut
down
from
the
power
button.
Power
LED
The
green
power
LED
indicates
the
power
status
of
the
SAN
Volume
Controller.
The
properties
of
the
green
power
LED
are
as
follows:
Off
One
or
more
of
the
following
are
true:
v
No
power
is
present
at
the
power
supply
input
v
The
power
supply
has
failed
v
The
LED
has
failed
On
The
SAN
Volume
Controller
is
powered
on.
Flashing
The
SAN
Volume
Controller
is
turned
off
but
is
still
connected
to
a
power
source.
Note:
A
power
LED
is
also
on
the
rear
of
the
server.
Check
LED
The
amber
check
LED
is
used
to
indicate
critical
failures
on
the
service
controller.
If
the
check
LED
is
off
and
the
power
LED
is
on,
the
service
controller
is
working
correctly.
If
the
check
LED
is
on,
a
critical
service
controller
failure
was
detected.
The
check
LED
is
also
on
while
the
service
controller
code
is
being
reprogrammed.
For
example,
when
the
SAN
Volume
Controller
cluster
code
is
being
upgraded,
the
check
LED
is
on.
It
is
normal
for
the
power
LED
to
be
on
at
this
time.
Navigation
buttons
You
can
use
the
navigation
buttons
to
move
through
menus.
There
are
four
navigational
buttons
that
you
can
use
to
move
throughout
a
menu:
up,
down,
right
and
left.
Each
button
corresponds
to
the
direction
that
you
can
move
in
a
menu.
For
example,
to
move
right
in
a
menu,
press
the
navigation
button
that
is
located
on
the
right
side.
If
you
want
to
move
down
in
a
menu,
press
the
navigation
button
that
is
located
on
the
bottom.
Note:
The
select
button
is
used
in
tandem
with
the
navigation
buttons.
Select
button
You
can
use
the
select
button
to
select
an
item
from
a
menu.
104
IBM
System
Storage
SAN
Volume
Controller:
Hardware
Installation
Guide
Summary of Contents for 2145UPS-1U
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