v
The
documentation
that
comes
with
the
new
drives
Read
all
precautionary
notes,
kit
instructions,
and
other
information.
Kit
instructions
often
contain
the
most
current
information
regarding
the
drives
and
their
installation,
plus
upgrade
or
servicing
procedures.
Compare
the
kit
instructions
with
this
procedure
to
determine
if
you
need
to
modify
this
procedure.
2.
Use
the
Storage
Manager
client
to
check
the
status
of
the
storage
subsystem.
Correct
any
problems
that
are
reported.
3.
Perform
a
complete
backup
of
the
drives
that
you
are
replacing.
You
need
the
backup
to
restore
data
on
the
drives
later
in
this
procedure.
Attention:
When
you
handle
static-sensitive
devices,
take
precautions
to
avoid
damage
from
static
electricity.
For
details
about
handling
static-sensitive
devices,
see
“Handling
static-sensitive
devices”
on
page
105.
4.
Unpack
the
new
drives.
Set
the
drives
on
a
dry,
level
surface
away
from
magnetic
fields.
Save
the
packing
material
and
documentation
in
case
you
need
to
return
the
drives.
5.
Perform
the
following
steps:
a.
Stop
all
I/O
activity
to
the
storage
subsystem
and
attached
storage
expansion
enclosures.
Make
sure
of
the
following:
1)
All
of
the
green
Drive
activity
LEDs
on
the
front
of
the
storage
subsystem
(and
on
all
attached
storage
expansion
enclosures)
are
not
flashing.
2)
The
green
Cache
active
LEDs
are
off
on
the
front
of
the
RAID
controllers.
b.
If
applicable,
use
the
operating
system
software
to
disconnect
the
storage
subsystem
logical
drives
from
the
host
before
you
power
off
the
storage
subsystem.
Attention:
To
turn
off
all
power
to
the
storage
subsystem,
you
must
turn
off
both
power-supply
switches
and
disconnect
both
power
cords.
Use
the
procedure
in
step
6
for
the
proper
shutdown
sequence.
6.
Turn
off
the
power
to
each
device
based
on
the
following
shutdown
sequence:
a.
Turn
off
power
to
the
host
before
you
turn
off
power
to
the
storage
subsystem.
If
the
host
must
stay
powered
on
to
support
an
existing
network,
see
the
operating
system
documentation
for
information
about
disconnecting
the
storage
subsystem
logical
drives
from
the
host
before
the
storage
subsystem
is
powered
off.
b.
Turn
off
power
to
the
storage
subsystem
before
you
turn
off
power
to
the
storage
expansion
enclosures.
Turn
off
both
power
supply
switches
on
the
back
of
the
storage
subsystem.
c.
Turn
off
power
to
other
supporting
devices
(for
example,
management
stations,
fibre-channel
switches,
or
Ethernet
switches).
Notes:
1)
You
do
not
need
to
perform
this
step
if
you
are
servicing
only
the
storage
subsystem.
2)
Depending
on
your
operating
system,
you
might
not
have
to
restart
the
host.
For
more
information,
see
the
software
installation
guide
for
your
operating
system.
7.
Use
the
procedures
in
“Replacing
hot-swap
drives”
on
page
123
to
remove
the
drives
that
you
want
to
replace.
Use
the
procedures
in
“Installing
hot-swap
drives”
on
page
121
to
install
the
new
drives
into
the
storage
subsystem.
126
IBM
TotalStorage
DS4300
Fibre
Channel
Storage
Subsystem:
Installation,
User’s,
and
Maintenance
Guide
Summary of Contents for TotalStorage DS4300 Turbo
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