1.
Return
DFSMS
host
control
of
the
3494
Tape
Library
to
online
status
by
issuing
the
following
command:
VARY
SMS,
LIB(libname
2
),
ONLINE
2.
Confirm
that
the
appropriate
drives
are
online
and
available
by
issuing
the
following
command:
LIBRARY
DISPDRV,
libname
2
For
any
drive
that
is
not
online,
issue
the
following
command:
VARY
xxx,
ONLINE
3.
If
the
system
environment
includes
JES-3,
the
library
tape
drives
must
be
in
normal
status.
Use
of
the
JES-3
VARY
commands
for
the
GLOBAL
and
all
LOCAL
processors
may
be
appropriate.
4.
If
the
system
environment
includes
LEGENT
Multiple
Image
Manager
(MIM),
the
3494
Tape
Library
tape
drives
must
be
in
normal
status.
Use
the
MIM
vary
commands
on
each
applicable
host.
5.
If
the
system
environment
includes
a
different
product,
such
as
Tivoli
®
Storage
Manager
or
EPIC,
use
the
appropriate
commands
to
ensure
normal
3494
Tape
Library
and
tape
drive
status.
6.
You
may
retry
any
pending
jobs
waiting
for
a
response
to
an
outstanding
WTOR
(CBR4196D)
message
by
responding
to
the
host
request
with
an
R
(
Retry
).
7.
If
the
CHECK-1
occurred
while
doing
cartridge
ejects,
verify
that
the
last
three
volsers
placed
in
either
the
high-capacity
I/O
facility
or
the
convenience
I/O
station
are
still
present
in
the
DFSMS
database.
If
the
volsers
are
present
in
the
DFSMS
database,
the
volsers
must
be
inserted
through
an
input
station,
then
the
DFSMS
command
to
eject
the
volsers
needs
to
be
reissued.
This
completes
the
DFSMS
recovery
procedure.
The
3494
Tape
Library
should
now
be
ready
for
submission
of
tape
jobs.
Note:
Any
tape
job
that
aborted
needs
to
be
resubmitted.
Library
Manager
Failure
in
MVS/BTLS
The
following
failure
conditions
cause
you
to
initiate
this
procedure:
v
Library
Manager
CHECK-1
condition
v
Library
Manager
hardware
failure
v
Library
Manager
processor
exception
software
error
When
the
active
Library
Manager
fails
in
a
dual
Library
Manager
system,
it
may
or
may
not
display
a
message.
The
standby
Library
Manager
displays
a
message
stating
that
a
switchover
is
being
made,
which
can
take
up
to
ten
minutes
to
complete.
Note:
Some
Library
Manager
recovery
operations
may
takelonger
than
expected
to
complete.
Allow
sufficient
time
for
the
Library
Manager
to
complete
its
switchover
procedures.
Seek
assistance
before
interrupting
the
Library
Manager
recovery
operation.
2. Where
libname
is
the
name
of
the
3494
Tape
Library.
Chapter
8.
Problem
Determination
Procedures
439
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