data
buffer
The
storage
buffer
in
the
control
unit.
This
buffer
is
used
to
increase
the
data
transfer
rate
between
the
control
unit
and
the
channel.
data
cartridge
A
tape
cartridge
dedicated
to
storing
data.
Contrast
with
cleaning
cartridge
.
data
check
A
synchronous
or
asynchronous
indication
of
a
condition
caused
by
invalid
data
or
incorrect
positioning
of
data.
dc
Direct
current.
degauss
To
make
a
magnetic
tape
nonmagnetic
by
means
of
electrical
coils
carrying
currents
that
neutralize
the
magnetism
of
the
tape.
degausser
A
device
that
makes
magnetic
tape
nonmagnetic.
degradation
A
decrease
in
quality
of
output
or
throughput
or
an
increase
in
machine
error
rate.
degraded
Decreased
in
quality
of
output
or
throughput
or
increased
machine
error
rate.
deserialize
To
change
from
serial-by-bit
to
parallel-by-byte.
detented
A
part
being
held
in
position
with
a
catch
or
lever.
device
Any
hardware
component
or
peripheral,
such
as
a
tape
drive
or
tape
library,
that
can
receive
and
send
data.
device
driver
A
file
that
contains
the
code
needed
to
use
an
attached
device.
DIAG
Diagnostic
section
of
maintenance
information
manual.
differential
See
High
Voltage
Differential
(HVD)
.
direct
access
storage
A
storage
device
in
which
the
access
time
is
independent
of
the
location
of
the
data.
DNS
Directory
Name
System.
This
allows
the
library
to
recognize
text-based
addresses
instead
of
numeric
IP
addresses.
download
To
transfer
programs
or
data
from
a
computer
to
a
connected
device,
typically
a
personal
computer.
To
transfer
data
from
a
computer
to
a
connected
device,
such
as
a
workstation
or
microcomputer.
DRAM
Dynamic
random-access
memory.
drive,
magnetic
tape
A
mechanism
for
moving
magnetic
tape
and
controlling
its
movement.
DRV
Drive.
G-4
TS2240
Tape
Drive
Setup,
Operator
and
Service
Manual
Summary of Contents for H4S
Page 2: ......
Page 6: ...iv TS2240 Tape Drive Setup Operator and Service Manual ...
Page 10: ...viii TS2240 Tape Drive Setup Operator and Service Manual ...
Page 12: ...x TS2240 Tape Drive Setup Operator and Service Manual ...
Page 14: ...xii TS2240 Tape Drive Setup Operator and Service Manual ...
Page 38: ...2 8 TS2240 Tape Drive Setup Operator and Service Manual ...
Page 76: ...5 6 TS2240 Tape Drive Setup Operator and Service Manual ...
Page 84: ...B 2 TS2240 Tape Drive Setup Operator and Service Manual ...
Page 92: ...C 8 TS2240 Tape Drive Setup Operator and Service Manual ...
Page 118: ...F 6 TS2240 Tape Drive Setup Operator and Service Manual ...
Page 136: ...X 4 TS2240 Tape Drive Setup Operator and Service Manual ...
Page 139: ......
Page 140: ... Part Number 45E1880 Printed in USA GC27 2151 00 1P P N 45E1880 ...
