11.
If
redundant
ac
power
is
used,
test
the
grounding
continuity
between
a
conductive
area
on
the
SAN
Volume
Controller
frame
and
the
ground
pin
on
the
plug
of
the
main
power
cable
of
the
redundant
ac
power
switch.
If
the
test
is
successful,
test
the
grounding
continuity
between
a
conductive
area
on
the
SAN
Volume
Controller
frame
and
the
ground
pin
on
the
plug
of
the
backup
power
cable
of
the
redundant
ac
power
switch.
Both
tests
must
be
successful.
12.
After
you
have
completed
testing
the
grounding
continuity,
perform
one
of
the
following
procedures,
depending
on
the
outcome
of
the
test.
v
If
the
test
is
successful,
reconnect
any
cables
that
were
removed,
and
power
on
any
UPSs
and
SAN
Volume
Controller
nodes
that
were
powered
off.
v
If
the
test
was
not
successful,
ensure
that
all
cables
are
securely
connected.
If
the
test
still
fails,
test
the
individual
system
components.
Before
you
test
the
individual
components,
remove
all
cables
from
the
components.
If
any
component
test
fails,
replace
the
component.
After
each
component
has
been
tested
and
the
failing
ones
have
been
replaced,
repeat
the
complete
system
test
by
returning
to
step
Test
the
components
in
the
following
order:
a.
The
SAN
Volume
Controller
node,
from
the
frame
to
the
ground
pin
of
the
input
power
receptacle.
b.
The
UPS
from
the
ground
pin
of
the
input
power
receptacle
to
the
ground
conductor
of
the
output
power
receptacle.
c.
If
used,
the
redundant
ac
power
switch
from
the
ground
pin
of
the
main
input
power
receptacle
to
the
ground
conductor
of
the
output
power
receptacle,
and
from
the
ground
pin
of
the
backup
input
power
receptacle
to
the
ground
conductor
of
the
output
power
receptacle.
d.
The
SAN
Volume
Controller
node
to
UPS
power
cable
assembly,
between
the
two
ground
conductors
of
the
power
cable.
e.
The
UPS
input
power
cable,
between
the
two
ground
conductors
of
the
power
cable.
f.
If
used,
the
redundant
ac
power
switch
main
input
power
cable,
between
the
two
ground
conductors
of
the
cable.
g.
If
used,
the
redundant
ac
power
switch
backup
input
power
cable,
between
the
two
ground
conductors
of
the
cable.
Inspecting
the
UPS
for
unsafe
conditions
Ensure
that
you
take
the
time
to
inspect
the
uninterruptible
power
supply
(UPS)
for
unsafe
conditions.
Consider
the
following
conditions
and
their
potential
safety
hazards:
Electrical
hazards
(especially
primary
power)
Primary
voltage
on
the
frame
can
cause
serious
or
lethal
electrical
shock.
Explosive
hazards
A
bulging
capacitor
can
cause
serious
injury.
Mechanical
hazards
Loose
or
missing
items
(for
example,
nuts
and
screws)
can
cause
serious
injury.
Use
caution
when
working
in
a
potential
safety
hazard
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.
xx
IBM
System
Storage
SAN
Volume
Controller:
Hardware
Installation
Guide
Summary of Contents for 2145UPS-1U
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