Informational
States
In
addition
to
the
operational
states,
the
following
informational
states
further
define
the
state
of
the
3494
Tape
Library
(one
or
more
of
which
can
occur
at
the
same
time):
Degraded
operation
Indicates
that
a
component
of
the
3494
Tape
Library
is
unavailable
(except
tape
drives
and
VTSs).
When
the
3494
HA1
Option
or
the
Dual
Active
Accessors
feature
are
installed,
this
includes
the
ability
of
the
standby
Library
Manager
or
the
standby
accessor
to
take
over
in
the
event
of
a
failure.
Safety
interlocks
open
Indicates
that
an
interlock
(front
door)
on
the
safety
circuit
is
open.
Vision
system
non-operational
Indicates
that
the
vision
system
has
failed
and
cannot
read
the
external
volume
labels
on
the
cartridges.
Intervention
required
Indicates
that
you
must
correct
a
condition
in
the
3494
Tape
Library.
Library
Manager
check-1
condition
Indicates
that
the
Library
Manager
has
detected
an
unrecoverable
condition
that
does
not
allow
continued
execution
of
host
requests.
If
the
3494
HA1
Option
is
installed,
the
Library
Manager
will
attempt
to
re-initialize
or
will
switch
to
the
standby
Library
Manager
to
correct
the
problem.
Figure
48.
Dual
Active
Accessor
Status
–
Enabling
Figure
49.
Dual
Active
Accessor
Status
–
Disabling
Chapter
4.
Operational
Modes,
Operational
States
and
Informational
States
103
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