interface
module
that
can
store
and
retrieve
a
cartridge’s
historical
usage
and
other
information.
LVD.
SCSI
Bus
Low
Voltage
Differential
M
magnetic
tape.
A
tape
with
a
magnetical
surface
layer
on
which
data
can
be
stored
by
magnetic
recording.
MAP.
Maintenance
analysis
procedure.
mask.
A
pattern
of
characters
that
controls
the
retention
or
elimination
of
portions
of
another
pattern
of
characters.
To
use
a
pattern
of
characters
to
control
the
retention
or
elimination
of
portions
of
another
pattern
of
characters.
master
file.
A
file
used
as
an
authority
in
a
given
job
and
that
is
relatively
permanent,
even
though
its
contents
may
change.
Synonymous
with
main
file.
MB.
Mega
Byte
(usually
expressed
as
data
rate
in
MB/s
or
MB/second).
media
capacity.
The
amount
of
data
that
can
be
contained
on
a
storage
medium,
expressed
in
bytes
of
data.
media-type
identifier.
Pertaining
to
the
bar
code
on
the
bar
code
label
of
the
IBM
Ultrium
Tape
Cartridge,
a
2-character
code,
L1,
that
represents
information
about
the
cartridge.
L
identifies
the
cartridge
as
one
that
can
be
read
by
devices
which
incorporate
LTO
technology;
1
indicates
that
it
is
the
first
generation
of
its
type.
mega.
One
million
of.
meter.
In
the
Metric
System,
the
basic
unit
of
length;
equal
to
approximately
39.37
inches.
micro.
One
millionth
of.
microcode.
(1)
One
or
more
micro
instructions.
(2)
A
code,
representing
the
instructions
of
an
instruction
set,
implemented
in
a
part
of
storage
that
is
not
program-addressable.
(3)
To
design,
write,
and
test
one
or
more
micro
instructions.
(4)
See
also
microprogram
.
microdiagnostic
routine.
A
program
that
runs
under
the
control
of
a
supervisor,
usually
to
identify
field
replaceable
units.
microdiagnostic
utility.
A
program
that
is
run
by
the
customer
engineer
to
test
the
machine.
microinstruction.
A
basic
or
elementary
machine
instruction.
microprogram.
A
group
of
microinstructions
that
when
executed
performs
a
preplanned
function.
The
term
microprogram
represents
a
dynamic
arrangement
or
selection
of
one
or
more
groups
of
microinstructions
for
execution
to
perform
a
particular
function.
The
term
microcode
represents
microinstructions
used
in
a
product
as
an
alternative
to
hard-wired
circuitry
to
implement
certain
functions
of
a
processor
or
other
system
component.
MIM.
Media
information
message.
mm.
Millimeter.
modifier.
That
which
changes
the
meaning.
mount
a
device.
To
assign
an
I/O
device
with
a
request
to
the
operator.
MP.
Microprocessor.
ms.
Millisecond.
MSG.
Message.
multipath.
Pertaining
to
using
more
than
one
path.
N
N/A.
Not
applicable.
node.
In
a
network,
a
point
at
which
one
or
more
functional
units
connect
channels
or
data
circuits.
NVS.
Nonvolatile
storage.
A
storage
device
whose
contents
are
not
lost
when
power
is
cut
off.
O
oersted.
The
unit
of
magnetic
field
strength
in
the
unrationalized
centimeter-gram-second
(cgs)
electromagnetic
system.
The
oersted
is
the
magnetic
field
strength
in
the
interior
of
an
elongated,
uniformly
wound
solenoid
that
is
excited
with
a
linear
current
density
in
its
winding
of
one
abampere
per
4
π
centimeters
of
axial
length.
offline.
Pertaining
to
the
operation
of
a
functional
unit
without
the
continual
control
of
a
computer.
Contrast
with
online
.
online.
Pertaining
to
the
operation
of
a
functional
unit
that
is
under
the
continual
control
of
a
computer.
Contrast
with
offline
.
OPER.
Operation.
ov.
Over
voltage.
overrun.
Loss
of
data
because
a
receiving
device
is
unable
to
accept
data
at
the
rate
it
is
transmitted.
overtightening.
To
tighten
too
much.
Glossary
F-5
Summary of Contents for System Storage TS3310
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