Dell TL2000 User Manual
Page 252
ESD.
Electrostatic
discharge.
ESP.
The
Encapsulating
Security
Payload
(ESP)
protocol
provides
origin
authenticity,
integrity,
and
confidentiality
protection
of
a
packet.
ESP
also
supports
encryption-only
and
authentication-only
configurations,
but
using
encryption
without
authentication
is
strongly
discouraged
because
it
is
insecure.
F
fault
symptom
code
(FSC).
A
hexadecimal
code
generated
by
the
drive
or
the
control
unit
microcode
in
response
to
a
detected
subsystem
error.
FCC.
Federal
communications
commission.
fiducial.
A
target
used
for
teaching
a
physical
location
to
a
robot.
field
replaceable
unit
(FRU).
An
assembly
that
is
replaced
in
its
entirety
when
any
one
of
its
components
fails.
file.
A
named
set
of
records
stored
or
processed
as
a
unit.
Also
referred
to
as
a
dataset.
file
protection.
The
processes
and
procedures
established
in
an
information
system
that
are
designed
to
inhibit
unauthorized
access
to,
contamination
of,
or
deletion
of
a
file.
file
transfer
protocol
(FTP).
In
the
Internet
suite
of
protocols,
an
application
layer
protocol
that
uses
TCP
and
Telnet
services
to
transfer
bulk-data
files
between
machines
or
hosts.
firmware.
Proprietary
code
that
is
usually
delivered
as
microcode
as
part
of
an
operating
system.
Firmware
is
more
efficient
than
software
loaded
from
an
alterable
medium
and
more
adaptable
to
change
than
pure
hardware
circuitry.
An
example
of
firmware
is
the
Basic
Input/Output
System
(BIOS)
in
read-only
memory
(ROM)
on
a
PC
motherboard.
FLASH
EEPROM.
An
electrically
erasable
programmable
read-only
memory
(EEPROM)
that
can
be
updated.
FMR.
Field
microcode
replacement.
format.
The
arrangement
or
layout
of
data
on
a
data
medium.
formatter.
Part
of
a
magnetic
tape
subsystem
that
performs
data
conversion,
speed
matching,
encoding,
first
level
error
recovery,
and
interfaces
to
one
or
more
tape
drives.
FP.
File
protect.
frayed.
Damaged
as
if
by
an
abrasive
substance.
FRU.
Field
replaceable
unit.
FSC.
Fault
symptom
code.
FSI.
Fault
symptom
index.
functional
microcode.
Microcode
that
is
resident
in
the
machine
during
normal
customer
operation.
G
g.
Gram.
GB.
gigabyte.
GBIC.
Gigabit
Interface
Converter.
Gbi.
gigabit
gigabit
(Gbit).
1
000
000
000
bits.
gigabyte
(GB).
1
000
000
000
bytes.
Gigabit
Interface
Converter
(GBIC).
Converts
copper
interface
to
optic
interface.
gnd.
Ground.
H
hertz
(Hz).
Unit
of
frequency.
One
hertz
equals
one
cycle
per
second.
hex.
Hexadecimal.
High
Voltage
Differential
(HVD).
A
logic
signaling
system
that
enables
data
communication
between
a
supported
host
and
the
library.
HVD
signaling
uses
a
paired
plus
and
minus
signal
level
to
reduce
the
effects
of
noise
on
the
SCSI
bus.
Any
noise
injected
into
the
signal
is
present
in
both
a
plus
and
minus
state,
and
is
thereby
canceled.
Synonymous
with
differential.
HVD.
SCSI
Bus
High
Voltage
Differential
Hz.
Hertz
(cycles
per
second).
I
ID.
Identifier.
identifier
(ID).
(1)
In
programming
languages,
a
lexical
unit
that
names
a
language
object;
for
example,
the
names
of
variables,
arrays,
records,
labels,
or
procedures.
An
identifier
usually
consists
of
a
letter
optionally
followed
by
letters,
digits,
or
other
characters.
(2)
One
or
more
characters
used
to
identify
or
name
data
element
and
possibly
to
indicate
certain
properties
of
that
data
element.
(3)
A
sequence
of
bits
or
characters
that
identifies
a
program,
device,
or
system
to
another
program,
device,
or
system.
H-4
Dell
PowerVault
TL2000
Tape
Library
and
TL4000
Tape
Library
User's
Guide