v
Show
hard
drive
active
protection
icon
on
the
system
tray
checkbox:
If
the
checkbox
is
selected,
the
icon
showing
the
status
of
the
shock
sensor
is
displayed
in
the
system
tray.
The
active
protection
system
is
enabled
by
default
whenever
the
computer
is
operating.
It
is
automatically
disabled
while
the
computer
is:
–
Loading
the
operating
system
–
Enter
Standby
or
hibernation
mode
–
Resuming
normal
operation
after
being
in
Standby
or
hibernation
mode
–
Being
shut
down
–
Turned
off
Important
features
of
the
IBM
Active
Protection
System
Enable/Disable
feature
(user
option
via
utility):
User
can
manually
enable
and
disable
the
active
protection
system
using
the
software
user
interface.
Automatic
ignore
feature:
Sometimes
the
user
is
in
an
environment
that
has
associated
vibration
(such
as
in
a
car
or
airplane
where
the
entire
vehicle
vibrates).
In
these
environments,
the
vibration
may
be
transmitted
to
the
ThinkPad
computer.
The
Automatic
Ignore
feature
is
helpful
in
this
situation.
This
feature
is
enabled
by
default,
but
the
user
can
manually
change
choice
at
any
time
via
the
software
utility.
Cancel
feature
for
impulse-type
vibration:
This
feature
cannot
be
manually
controlled
by
the
user.
The
Shock
Manager
ignores
impulse-type
acceleration
change
so
as
to
minimize
prediction
failures.
An
adaptive
low-pass
filter
function
inside
the
Shock
Manager
performs
this
function.
Heuristic
sensitivity
tuning
feature:
This
feature
cannot
be
manually
controlled
by
the
user.
The
sensitivity
for
shock
prediction
is
dynamically
changed
depending
on
body
posture
change
with
received
shocks,
vibrations
and
user
input
activities.
Administrative
lock:
This
feature
restricts
users
without
Administrative
system
rights
from
changing
the
Active
Protection
System
properties.
Summary
The
IBM
Hard
Drive
Active
Protection
System
can
greatly
improve
overall
system
reliability
by
providing
enhanced
hard
drive
protection
from
shock.
Using
the
latest
technology
to
constantly
monitor
the
movement
of
your
ThinkPad
computer,
users
can
feel
confident
that
their
data
will
be
better
protected
in
the
event
of
a
drop
or
similar
potentially
damaging
event.
6
IBM
Active
Protection
System
Whitepaper