Turning
on
the
power
after
an
overtemperature
shutdown
If
your
DS4500
Storage
Server
shuts
down
unexpectedly
and
you
received
a
″
Maximum
temperature
exceeded
″
alert
from
the
storage
server
before
it
shutdown,
take
the
following
precautions
to
cool
it
before
you
power
on
the
unit:
1.
Turn
off
the
power
switches
to
allow
the
DS4500
Storage
Server
to
cool.
2.
When
the
room
temperature
is
below
the
upper
operating
temperature
of
35°
C
(95°
F),
turn
on
the
power
switches.
3.
Check
the
DS4500
Storage
Server
for
faults
or
damage.
Use
the
storage-management
software
to
check
the
overall
status
of
the
DS4500
Storage
Server
and
its
components.
Correct
any
problems
indicated.
Turning
on
the
power
after
an
emergency
shutdown
Use
this
procedure
to
regain
normal
system
operation
after
a
power
failure
or
emergency
shutdown:
1.
Check
all
components
and
cables
for
damage.
If
there
is
no
visible
damage,
continue
with
Step
2;
otherwise,
service
the
system.
2.
Make
sure
the
power
cords
are
plugged
in.
3.
Make
sure
that
the
circuit
breaker,
storage
expansion
enclosures,
and
storage
server
power
switches
are
in
the
off
position.
4.
Turn
on
the
circuit
breakers
in
the
rack
cabinet,
and
turn
on
the
power
switches
on
all
storage
expansion
enclosures
attached
to
the
DS4500
Storage
Server.
Important:
You
must
turn
on
the
storage
expansion
enclosures
before
you
turn
on
the
DS4500
Storage
Server.
The
controllers
might
not
recognize
the
correct
configuration
if
the
attached
drives
are
powered
up
after
the
DS4500
Storage
Server.
For
instructions
on
how
to
power
up
the
storage
expansion
enclosures,
refer
to
the
storage
expansion
enclosure
documentation.
5.
Turn
on
both
power
switches
on
the
back
of
the
DS4500
Storage
Server.
For
the
location
of
the
power
switches,
see
Figure
23
on
page
23.
6.
Check
the
status
of
the
DS4500
Storage
Server
and
other
devices.
Make
sure
all
fault
indicator
lights
are
off
on
the
front
and
back
of
the
DS4500
Storage
Server.
For
more
information,
see
“Checking
the
indicator
lights”
on
page
26.
7.
When
all
the
devices
are
powered
up,
check
the
overall
system
status
by
using
the
storage-management
software.
Checking
the
battery
service
date
Note:
Replace
the
battery
whenever
it
fails
to
hold
a
charge
or
every
three
years.
Operating
the
DS4500
Storage
Server
in
a
hot
environment
(above
35°
C
or
95°
F)
lowers
the
battery
life
expectancy.
To
check
the
battery
service
date,
perform
the
following
steps:
1.
Remove
the
DS4500
Storage
Server
bezel,
as
shown
in
Figure
21
on
page
21.
38
IBM
TotalStorage
DS4500
Fibre
Channel
Storage
Server:
User’s
Guide
Summary of Contents for TotalStorage DS4500
Page 1: ...IBM TotalStorage DS4500 Fibre Channel Storage Server User s Guide GC26 7726 00...
Page 2: ......
Page 3: ...IBM TotalStorage DS4500 Fibre Channel Storage Server User s Guide GC26 7726 00...
Page 7: ...Glossary 75 75 Index 85 Contents v...
Page 8: ...vi IBM TotalStorage DS4500 Fibre Channel Storage Server User s Guide...
Page 10: ...viii IBM TotalStorage DS4500 Fibre Channel Storage Server User s Guide...
Page 12: ...x IBM TotalStorage DS4500 Fibre Channel Storage Server User s Guide...
Page 18: ...xvi IBM TotalStorage DS4500 Fibre Channel Storage Server User s Guide...
Page 72: ...42 IBM TotalStorage DS4500 Fibre Channel Storage Server User s Guide...
Page 96: ...66 IBM TotalStorage DS4500 Fibre Channel Storage Server User s Guide...
Page 114: ...84 IBM TotalStorage DS4500 Fibre Channel Storage Server User s Guide...
Page 121: ......
Page 122: ...Part Number 25R0401 Printed in USA GC26 7726 00 1P P N 25R0401...
