Chapter
4.
Operational
Modes,
Operational
States
and
Informational
States
This
chapter
describes
the
operational
modes,
operational
states,
and
informational
states
of
the
3494
Tape
Library.
The
following
mode
and
states
define
the
current
status
of
the
Library
Manager:
v
Operational
mode
v
Operational
state
v
Informational
state
The
operational
mode
and
state
information
are
available
through
the
Library
Manager
console.
If
the
optional
remote
Library
Manager
console
feature
is
installed,
they
are
also
available
through
the
remote
Library
Manager
console.
To
view
this
information,
do
either
of
the
following:
1.
Select
the
Status
option
on
the
Operator
menu.
2.
Select
the
System
summary...
option
on
the
Status
menu.
Note:
If
the
display
is
blank,
press
any
key
on
the
keyboard
to
activate
the
display.
Operational
Modes
The
3494
Tape
Library
operates
in
one
of
the
following
modes:
Auto
Mode
In
this
mode,
the
cartridge
accessor
is
operational.
The
Library
Manager
manages
all
commands
under
host
program
control
or
from
the
Library
Manager
console.
The
front
doors
of
the
3494
Tape
Library
must
be
closed
to
operate
in
Auto
mode.
Pause
Mode
In
this
mode,
the
processing
of
Mount,
Demount,
Eject,
and
Audit
requests
are
suspended.
The
3494
Tape
Library
enters
this
mode
automatically
when
a
failure
prevents
automatic
operation
or
when
instructed
from
the
Library
Manager
console
or
the
operator
panel.
This
mode
allows
you
to
open
the
front
doors
on
the
3494
Tape
Library
to
correct
an
intervention
condition,
to
insert
cartridges
into
the
3494
Tape
Library,
or
to
remove
cartridges
from
the
High-Capacity
Output
Facility.
All
host
requests
for
Mount,
Demount,
Eject,
and
Audit
operations
are
queued
until
the
3494
Tape
Library
returns
to
Auto
mode.
Mount
and
Demount
for
logical
drives
only
can
be
performed
during
this
time
(Pause
Online).
When
you
change
the
mode
from
Auto
to
Pause,
the
Library
Manager
instructs
the
cartridge
accessor
to
park.
If
an
error
condition
occurs,
the
Library
Manager
removes
power
immediately
from
the
cartridge
accessor
and
suspends
any
operations
in
progress.
Manual
Mode
When
you
select
this
mode,
the
Library
Manager
parks
the
cartridge
accessor
in
the
home
position,
if
possible.
If
necessary,
you
may
move
the
cartridge
accessor
to
gain
access
to
a
cartridge
or
drive.
The
Library
Manager
provides
you
with
instructions
to
perform
tasks
that
it
normally
performs
automatically.
This
mode
©
Copyright
IBM
Corp.
2001,
2008
99
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