Use
caution
when
working
in
any
potential
safety
hazardous
situation
that
is
not
covered
in
the
safety
checks.
If
unsafe
conditions
are
present,
determine
how
serious
the
hazards
are
and
whether
you
can
continue
before
you
correct
the
problem.
Ensure
that
you
perform
an
external
machine
check
before
you
install
the
SAN
Volume
Controller.
Ensure
that
you
perform
an
internal
machine
check
before
you
install
the
SAN
Volume
Controller.
Ensure
that
you
take
the
time
to
inspect
the
uninterruptible
power
supply
(UPS)
for
unsafe
conditions.
Related
reference
All
controls
and
indicators
are
located
on
the
front
panel
of
the
SAN
Volume
Controller.
The
indicators
for
the
SAN
Volume
Controller
are
contained
on
the
front
and
back
panel
assembly.
The
following
graphics
show
the
rear
panel
indicators.
All
controls
for
the
2145
uninterruptible
power
supply-1U
(2145
UPS-1U)
are
located
on
the
front
panel
assembly.
Connecting
the
SAN
Volume
Controller
2145-4F2
to
the
2145
UPS
Connecting
the
SAN
Volume
Controller
2145-4F2
node
to
the
2145
uninterruptible
power
supply
(2145
UPS)
requires
that
you
first
review
the
restrictions
that
exist
between
the
two
systems.
Each
SAN
Volume
Controller
2145-4F2
of
a
pair
must
be
connected
to
a
different
2145
UPS.
Each
2145
UPS
can
support
up
to
two
SAN
Volume
Controller
2145-4F2s.
Attention:
Do
not
connect
two
nodes
to
the
same
pair
of
2145
UPSs.
Both
nodes
are
lost
in
the
event
that
a
power
failure
occurs
on
both
of
those
2145
UPSs.
Note:
You
must
install
2145
UPSs
in
pairs.
There
must
be
at
least
two
2145
UPSs
per
cluster.
A
cluster
can
contain
no
more
than
eight
SAN
Volume
Controller
2145-4F2s.
Also,
ensure
that
each
2145
UPS
of
a
pair
is
connected
to
a
separate
electrical
input
power
source
(if
possible)
to
reduce
the
chance
of
input
power
failure
at
both
2145
UPSs.
Before
you
begin
this
task,
refer
to
the
user’s
cable
connection
table
in
the
IBM
System
Storage
SAN
Volume
Controller:
Planning
Guide
to
identify
the
2145
UPS
to
which
this
SAN
Volume
Controller
2145-4F2
is
to
be
connected.
Perform
the
following
steps
to
connect
the
SAN
Volume
Controller
2145-4F2
to
the
2145
UPS:
1.
At
the
back
of
the
SAN
Volume
Controller
2145-4F2,
plug
a
power
cable
into
the
power
connector
1
.
See
72
IBM
System
Storage
SAN
Volume
Controller:
Installation
Guide
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