1.
After
the
emergency
situation
is
over
or
power
is
restored,
check
the
EXP100
for
damage.
If
there
is
no
visible
damage,
continue
with
step
2;
otherwise,
have
your
system
serviced.
2.
After
you
check
the
EXP100
for
damage,
ensure
that
the
power
switches
are
in
the
off
position;
then
plug
in
the
EXP100
power
cables.
3.
Check
the
system
documentation
of
the
hardware
devices
that
you
want
to
turn
on
and
determine
the
proper
startup
sequence.
Attention:
a.
Be
sure
to
turn
on
the
EXP100
before
you
turn
on
the
DS4000.
b.
Before
you
power
on
the
DS4000
storage
subsystem,
the
EXP100
must
be
populated
with
at
least
two
drives.
If
at
least
two
drives
are
not
installed
in
each
attached
expansion
enclosure
when
you
power
on
the
DS4000,
your
standard
storage
partition
key
will
be
lost
and
will
need
to
be
regenerated
using
instructions
on
the
IBM
DS4000
Solutions
and
Premium
Features
Web
site:
www-912.ibm.com/PremiumFeatures/
All
of
the
drives
in
each
connected
EXP100
unit
must
contain
no
prior
configuration
data.
Additionally,
if
at
least
two
drives
are
not
installed
in
each
attached
EXP100,
the
resulting
insufficient
load
to
the
EXP100
power
supply
CRUs
might
cause
the
EXP100
power
supply
CRUs
to
intermittently
appear
as
failed
and
then
reappear
in
an
optimal
state,
falsely
indicating
that
the
power
supply
CRUs
are
bad.
c.
In
addition,
consider
the
following
items:
v
The
storage
subsystem
supports
simultaneous
power-up
of
the
system
components;
however,
you
should
always
follow
the
power-up
sequence
listed
in
the
“Turning
on
the
storage
subsystem
section”
of
the
appropriate
DS4000
User’s
Guide
during
any
attended
power-up
procedure.
v
A
storage
system
in
an
optimal
state
should
recover
automatically
from
an
unexpected
shutdown
and
unattended
simultaneous
restoration
of
power
to
system
components.
After
power
is
restored,
contact
IBM
technical
support
if
any
of
the
following
conditions
occur:
–
The
storage
subsystem
logical
drives
and
arrays
do
not
display
in
the
Storage
Manager
graphical
user
interface
(GUI).
–
The
storage
subsystem
logical
drives
and
arrays
do
not
come
online.
–
The
storage
subsystem
logical
drives
and
arrays
seem
to
be
degraded.
4.
Turn
on
the
power
to
each
device,
based
on
the
startup
sequence.
5.
Turn
on
both
of
the
power
supply
switches
on
the
EXP100.
The
green
LEDs
on
the
front
and
the
back
of
the
EXP100
should
remain
lit.
If
other
amber
Fault
LEDs
light,
see
62
IBM
TotalStorage
DS4000
EXP100
Storage
Expansion
Enclosure:
Installation,
User’s
and
Maintenance
Guide
Содержание TotalStorage EXP100
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