Performing an emergency shutdown, Restoring power after an emergency shutdown, Restoring power after an over-temperature shutdown – IBM Partner Pavilion DS4100 User Manual
Page 101: Performing, Emergency, Shutdown, Restoring, Power, After, Over-temperature
Attention:
To
avoid
damage
to
the
hardware,
take
special
care
when
you
restart
the
system
after
an
unexpected
shutdown.
If
the
storage
server
shuts
down
unexpectedly,
go
to
Otherwise,
go
to
Note:
Unattended
restoration
of
power
is
supported;
however,
if
power
restoration
is
attended,
you
should
follow
the
best
practices
guidelines
and
the
power
restoration
sequence
in
Performing
an
emergency
shutdown
Attention:
Emergency
situations
might
include
fire,
flood,
extreme
weather
conditions,
or
other
hazardous
circumstances.
If
a
power
outage
or
emergency
situation
occurs,
always
turn
off
all
power
switches
on
all
computing
equipment.
This
will
help
safeguard
your
equipment
from
potential
damage
due
to
electrical
surges
when
power
is
restored.
If
the
storage
server
loses
power
unexpectedly,
it
might
be
due
to
a
hardware
failure
in
the
power
system
or
midplane
(see
Use
this
procedure
to
shut
down
the
storage
server
during
an
emergency:
1.
If
you
have
time,
stop
all
I/O
activity
to
the
storage
server
by
shutting
down
the
host
or
disconnecting
the
storage
server
logical
drives
through
the
host.
2.
Check
the
LEDs
(front
and
back).
Make
note
of
any
Fault
LEDs
that
are
on
so
you
can
correct
the
problem
when
you
turn
on
the
power
again.
3.
Turn
off
all
power-supply
switches;
then
unplug
the
power
cords
from
the
storage
server.
Restoring
power
after
an
emergency
shutdown
Use
this
procedure
to
restart
the
storage
server
if
you
turned
off
the
power-supply
switches
during
an
emergency
shutdown,
or
if
a
power
failure
or
a
power
outage
occurred:
1.
After
the
emergency
situation
is
over
or
power
is
restored,
check
the
storage
server
for
damage.
If
there
is
no
visible
damage,
continue
with
step
2;
otherwise,
have
your
system
serviced.
2.
After
you
have
checked
for
damage,
ensure
that
the
power-supply
switches
are
off;
then
plug
in
the
storage-server
power
cords.
3.
Complete
step
to
determine
the
proper
power-on
sequence
for
your
system.
4.
Complete
steps
and
to
turn
on
power
to
the
devices
in
your
system
and
to
check
the
status
of
the
storage
server.
Restoring
power
after
an
over-temperature
shutdown
Use
this
procedure
to
restart
the
storage
server
after
an
unexpected
shutdown
due
to
an
over-temperature
condition:
1.
Make
sure
that
the
power-supply
switches
on
the
back
of
the
storage
server
are
turned
off.
2.
Do
whatever
is
necessary
to
cool
the
unit
(replace
the
fans,
use
external
fans
to
cool
the
room,
and
so
on).
3.
Check
all
components
and
cables
for
visible
damage.
Do
not
start
the
storage
server
if
you
find
evidence
of
damage.
Chapter
4.
Operating
the
storage
server
69