HP 220mx HP SureStore 220mx Optical Jukebox User's Guide - Page 103

cartridge, driver, element, front panel, high-voltage differential, jukebox, jukebox controller

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Glossary Glossary C-D cartridge A plastic enclosure that contains an optical disk. The cartridge is labeled "A" or "B" to denote separate sides of the optical disk. The optical disk is never removed from the cartridge. disk See optical disk. driver A program that allows the operating system to communicate with a peripheral device. E-L element A SCSI term for any one of the autochanger components - drive, mailslot, storage slots, or picker. front panel The part of the jukebox that includes a control panel used to manage and display functions, and a mailslot to insert and remove disks. high-voltage differential SCSI Signals are asserted on the bus by using two lines for each signal and measuring the voltage difference between the signals. Differential retains more signal quality than single-ended and is not as sensitive to noise, allowing for a longer cable length. This form of differential uses +5V signal levels. HVD See high-voltage differential SCSI. jukebox A term synonymous with optical disk library or autochanger. This type of optical storage device is often referred to as a "jukebox" because when a file is requested, the disk containing the file is found, inserted into the drive, and the requested information is sent to the host computer system, similar to the way a musical jukebox finds a record and moves it to the turntable when a song is requested. jukebox controller The part of the jukebox that controls the sending and receiving of SCSI commands and controls the disk transport mechanism. 1

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1
Glossary
Glossary
C-D
cartridge
A plastic enclosure
that contains an optical disk.
The cartridge is labeled
“
A
”
or
“
B
”
to denote separate sides of
the optical disk. The optical
disk is never removed from the
cartridge.
disk
See optical disk.
driver
A program that allows
the operating system to
communicate with a peripheral
device.
E-L
element
A SCSI term for any
one of the autochanger
components
—
drive, mailslot,
storage slots, or picker.
front panel
The part of the
jukebox that includes a control
panel used to manage and
display functions, and a
mailslot to insert and remove
disks.
high-voltage differential
SCSI
Signals are asserted on
the bus by using two lines for
each signal and measuring the
voltage difference between the
signals. Differential retains
more signal quality than
single-ended and is not as
sensitive to noise, allowing for a
longer cable length. This form
of differential uses +5V signal
levels.
HVD
See high-voltage
differential SCSI.
jukebox
A term synonymous
with optical disk library or
autochanger. This type of
optical storage device is often
referred to as a
“
jukebox
”
because when a file is
requested, the disk containing
the file is found, inserted into
the drive, and the requested
information is sent to the host
computer system, similar to the
way a musical jukebox finds a
record and moves it to the
turntable when a song is
requested.
jukebox controller
The part
of the jukebox that controls the
sending and receiving of SCSI
commands and controls the
disk transport mechanism.