public
device.
A
device
that
is
attached
to
a
fabric
or
switch,
and
can
communicate
to
that
fabric
or
switch.
A
public
device
can
be
part
of
an
arbitrated
loop
topology
or
point-to-point
topology.
Q
quiesce.
To
put
a
device
into
a
temporarily
inactive
or
inhibited
state,
but
not
remove
it
from
the
server.
R
read.
To
acquire
or
interpret
data
from
a
storage
device,
from
a
data
medium,
or
from
another
source.
reboot.
To
reinitialize
the
execution
of
a
program
by
repeating
the
initial
program
load
(IPL)
operation.
record.
The
smallest
distinct
set
of
data
bytes
that
is
supplied
from
a
server
for
processing
and
recording
by
a
tape
drive,
and
the
smallest
distinct
set
of
data
to
be
read
from
tape,
reprocessed,
and
made
available
to
a
server
by
a
tape
drive.
record
boundaries.
The
fixed
limits
of
a
record.
relative
humidity.
The
ratio
of
the
amount
of
water
vapor
actually
present
in
the
air
to
the
greatest
amount
possible
at
the
same
temperature.
repeater.
A
device
that
regenerates
signals
to
extend
the
range
of
transmission
between
data
stations
or
to
interconnect
two
branches.
A
repeater
is
a
node
of
a
local
area
network.
reset.
To
return
a
device
or
circuit
to
a
clear
state.
LDI
wrap
plug.
A
connector
mechanism
that
connects
to
an
LDI
port
for
the
purpose
of
testing
the
drive’s
circuitry
for
the
LDI
interface.
LDI
wrap
test.
A
diagnostic
that
can
be
run
on
the
drive
to
determine
whether
the
circuitry
functions
properly
to
and
from
the
LDI
connector.
S
s.
See
second
.
SAN.
See
Storage
Area
Network
.
SAN
Data
Gateway.
A
device
that
provides
Fibre
Channel
attachment
between
Open
Systems
servers
and
SCSI
disk
and
tape
storage
systems.
SC.
See
subscription
channel
connector
.
scratch
cartridge.
A
data
cartridge
that
contains
no
useful
data,
but
can
be
written
to
with
new
data.
SCSI.
See
Small
Computer
Systems
Interface
.
SCSI
bus.
(1)
A
collection
of
wires
through
which
data
is
transmitted
from
one
part
of
a
computer
to
another.
(2)
A
generic
term
that
refers
to
the
complete
set
of
signals
that
define
the
activity
of
the
Small
Computer
Systems
Interface
(SCSI).
SCSI
connector.
Located
at
the
rear
of
the
drive,
the
connector
that
facilitates
commands
to
and
from
the
server,
and
to
which
the
internal
SCSI
cable
of
an
enclosure
connects.
SCSI
device.
Anything
that
can
connect
into
the
SCSI
bus
and
actively
participate
in
bus
activity.
SCSI
drive
sense
data.
In
response
to
inquiry
from
the
server
about
an
error
condition,
a
packet
of
SCSI
sense
bytes
that
contains
information
about
the
error
and
that
is
sent
back
to
the
server
by
the
drive.
SCSI
ID.
The
unique
address
(from
1
to
15)
that
you
assign
to
an
drive
that
uses
a
SCSI
interface
(Model
T400).
SCSI
ID
connector.
Located
at
the
rear
of
the
drive,
the
connector
that
enables
the
drive’s
SCSI
address
to
be
set.
Addresses
are
determined
by
the
placement
of
jumpers
on
the
pins.
SCSI
interface.
See
Small
Computer
Systems
Interface
.
SCSI
protocol.
A
set
of
rules
that
control
the
communication
and
transfer
of
data
between
two
or
more
SCSI
devices
or
systems
in
a
communications
network.
SCSI
ID
switch.
Located
on
an
enclosure
that
contains
a
drive,
a
mechanism
that
connects
to
the
drive
and
allows
you
to
change
the
drive’s
SCSI
ID
without
using
jumpers.
SCSI
log
sense
data.
In
response
to
inquiry
from
the
server
about
the
drive’s
error
logs
and
counters,
a
packet
of
SCSI
sense
bytes
which
contains
that
information
and
which
is
sent
back
to
the
server
by
the
drive.
Log
sense
data
is
used
to
diagnose
problems,
especially
if
the
problems
are
intermittent.
SCSI
wrap
plug.
A
connector
mechanism
that
connects
to
a
SCSI
port
for
the
purpose
of
testing
the
drive’s
circuitry
for
the
SCSI
interface.
SCSI
wrap
test.
A
diagnostic
that
can
be
run
on
the
drive
to
determine
whether
the
circuitry
functions
properly
to
and
from
the
SCSI
connector.
second.
One
sixtieth
of
a
minute.
selection
time-out.
Following
the
selection
of
an
option
(for
example,
a
data
transfer),
the
period
of
time
during
which
it
is
determined
that
there
is
a
bad
connection
between
the
server
and
the
drive.
Glossary
125
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