Statement
5
1
2
Complete
the
following
steps
to
turn
off
the
power:
1.
Before
proceeding,
use
the
ServeRAID
Manager
program
to
determine
the
status
of
the
system
components
and
special
instructions.
The
operating-system
software
might
require
you
to
perform
other
procedures
before
you
turn
off
the
power.
2.
Use
the
ServeRAID
Manager
program
to
check
the
status
of
the
storage
subsystem.
Correct
problems
that
are
reported
before
you
turn
off
the
power.
3.
Stop
all
I/O
activity
to
the
storage
subsystem
and
attached
expansion
units.
Make
sure
that:
v
All
of
the
green
drive-active
LEDs
on
the
front
of
the
storage
subsystem
(and
on
all
attached
expansion
units)
are
not
flashing.
v
The
green
cache-active
LEDs
on
the
back
of
the
storage
subsystem
are
off.
4.
From
the
ServeRAID
Manager
interface,
shut
down
the
RAID
controller
to
flush
the
data
from
the
cache.
5.
If
applicable,
use
the
operating-system
software
to
disconnect
the
storage
subsystem
logical
drives
from
the
host
before
the
storage
subsystem
is
turned
off.
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
according
to
the
following
shutdown
sequence:
a.
Turn
off
power
to
the
host
before
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
expansion
units.
Turn
off
both
power-supply
switches
on
the
back
of
the
storage
subsystem.
c.
Turn
off
power
to
other
supporting
devices,
such
as
management
stations,
Fibre
Channel
switches,
Fibre
Channel
managed
hubs,
or
Ethernet
switches.
Note:
You
do
not
have
to
perform
this
step
if
you
are
servicing
only
the
storage
subsystem.
After
you
perform
the
necessary
maintenance
procedures,
turn
on
the
power
by
using
the
procedure
in
“Turning
on
the
storage
subsystem”
on
page
36.
38
IBM
TotalStorage
DS300
and
DS400:
Hardware
Installation
and
User’s
Guide
Содержание TotalStorage DS300
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