IBM 3580-L11 Setup Guide - Page 105

Low Voltage Differential/Single Ended LVD/SE., IBM Ultrium Tape Drive.

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signal is present in both a plus and minus state, and is thereby canceled. Synonymous with differential. host. The controlling or highest-level system in a data communication configuration. Synonymous with server. HVD/DIFF. High voltage differential. Hz. Hertz. I IBM Ultrium Tape Drive. Located within the 3580 Tape Drive, a data-storage device that controls the movement of the magnetic tape in an LTO Ultrium Tape Cartridge. The drive houses the mechanism (drive head) that reads and writes data to the tape. The drive is the first of four drives planned for the Ultrium format. Its native data capacity is 100 GB per cartridge; with 2:1 compression, its capacity is up to 200 GB. ID. Identifier. insert. Pertaining to the 3580 Tape Drive, to place a tape cartridge into the tape drive. install. To set up for use or service. The act of adding a product, feature, or function to a system or device either by a singular change or by the addition of multiple components or devices. Internet. The worldwide collection of interconnected networks that use the Internet suite of protocols and permit public access. interposer. An adapter-like device that allows a connector of one size and style to connect to a mating connector of a different type and style. K kg. Kilogram. kilogram (kg). One thousand grams (approximately 2.2 pounds). L label. A slip of paper with an adhesive backing that can be written on and affixed to a tape cartridge as a means of identification or description. label area. On the LTO Ultrium Tape Cartridge, a recessed area next to the write-protect switch where a label may be affixed. LCD. See liquid crystal display. leader pin. Within the LTO Ultrium Tape Cartridge, a small metal column attached to the end of the magnetic tape. During tape processing the leader pin is grasped by a threading mechanism, which pulls the pin and the tape out of the cartridge, across the drive head, and onto a takeup reel. The head can then read or write data from or to the tape. LED. Light-emitting diode. light-emitting diode (LED). A semiconductor chip that gives off visible or infrared light when activated. Used to illuminate the single-character display on the 3580 Tape Drive. Linear Tape-Open (LTO). A type of tape storage technology developed by the IBM Corporation, Hewlett-Packard, and Seagate. LTO technology is an "open format" technology, which means that its users will have multiple sources of product and media. The "open" nature of LTO technology enables compatibility between different vendors' offerings by ensuring that vendors comply with verification standards. The LTO technology is implemented in two formats: the Accelis format focuses on fast access; the Ultrium format focuses on high capacity. The Ultrium format is the preferred format when capacity (rather than fast access) is the key storage consideration. An Ultrium cartridge has a compressed data capacity of up to 200 GB (at 2:1 compression) and a native data capacity of up to 100 GB. The Ultrium format is designed with a 4-generation road map that provides for up to 1.6 TB per cartridge (at 2:1 compression) in Generation 4, with a compressed transfer rate of up to 320 MB per second. liquid crystal display (LCD). A low-power display technology used in computers and other I/O devices. load. Following insertion of a tape cartridge into a tape drive, the act (performed by the tape drive) of positioning the tape for reading or writing by the drive head. load and unload cycle. The act of inserting a cartridge into a tape drive, loading the tape to load point, rewinding the tape into the cartridge, and ejecting the cartridge from the drive. Low Voltage Differential/Single Ended (LVD/SE). A low-noise, low-power, and low-amplitude electrical signaling system that enables data communication between a supported host and another device, such as the 3580 Tape Drive. LVD/SE signaling uses two wires to drive one signal over copper wire. The use of wire pairs reduces electrical noise and crosstalk. This method of data transmission requires a cable that is no longer than 25 meters (82 ft). LTO. Linear Tape-Open. LTO-CM. LTO cartridge memory. LTO cartridge memory (LTO-CM). Within each IBM LTO Ultrium Data Cartridge, an embedded electronics and interface module that can store and retrieve a cartridge's historical usage and other information. Glossary 89

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signal is present in both a plus and minus state, and is
thereby canceled. Synonymous with
differential
.
host.
The controlling or highest-level system in a data
communication configuration. Synonymous with
server
.
HVD/DIFF.
High voltage differential.
Hz.
Hertz.
I
IBM Ultrium Tape Drive.
Located within the 3580
Tape Drive, a data-storage device that controls the
movement of the magnetic tape in an LTO Ultrium Tape
Cartridge. The drive houses the mechanism (drive
head) that reads and writes data to the tape. The drive
is the first of four drives planned for the Ultrium format.
Its native data capacity is 100 GB per cartridge; with 2:1
compression, its capacity is up to 200 GB.
ID.
Identifier.
insert.
Pertaining to the 3580 Tape Drive, to place a
tape cartridge into the tape drive.
install.
To set up for use or service. The act of adding
a product, feature, or function to a system or device
either by a singular change or by the addition of multiple
components or devices.
Internet.
The worldwide collection of interconnected
networks that use the Internet suite of protocols and
permit public access.
interposer.
An adapter-like device that allows a
connector of one size and style to connect to a mating
connector of a different type and style.
K
kg.
Kilogram.
kilogram (kg).
One thousand grams (approximately
2.2 pounds).
L
label.
A slip of paper with an adhesive backing that
can be written on and affixed to a tape cartridge as a
means of identification or description.
label area.
On the LTO Ultrium Tape Cartridge, a
recessed area next to the write-protect switch where a
label may be affixed.
LCD.
See
liquid crystal display
.
leader pin.
Within the LTO Ultrium Tape Cartridge, a
small metal column attached to the end of the magnetic
tape. During tape processing the leader pin is grasped
by a threading mechanism, which pulls the pin and the
tape out of the cartridge, across the drive head, and
onto a takeup reel. The head can then read or write
data from or to the tape.
LED.
Light-emitting diode.
light-emitting diode (LED).
A semiconductor chip that
gives off visible or infrared light when activated. Used to
illuminate the single-character display on the 3580 Tape
Drive.
Linear Tape-Open (LTO).
A type of tape storage
technology developed by the IBM Corporation,
Hewlett-Packard, and Seagate. LTO technology is an
“open format” technology, which means that its users
will have multiple sources of product and media. The
“open” nature of LTO technology enables compatibility
between different vendors’ offerings by ensuring that
vendors comply with verification standards. The LTO
technology is implemented in two formats: the Accelis
format focuses on fast access; the Ultrium format
focuses on high capacity. The Ultrium format is the
preferred format when capacity (rather than fast access)
is the key storage consideration. An Ultrium cartridge
has a compressed data capacity of up to 200 GB (at 2:1
compression) and a native data capacity of up to 100
GB. The Ultrium format is designed with a 4-generation
road map that provides for up to 1.6 TB per cartridge (at
2:1 compression) in Generation 4, with a compressed
transfer rate of up to 320 MB per second.
liquid crystal display (LCD).
A low-power display
technology used in computers and other I/O devices.
load.
Following insertion of a tape cartridge into a tape
drive, the act (performed by the tape drive) of
positioning the tape for reading or writing by the drive
head.
load and unload cycle.
The act of inserting a
cartridge into a tape drive, loading the tape to load
point, rewinding the tape into the cartridge, and ejecting
the cartridge from the drive.
Low Voltage Differential/Single Ended (LVD/SE).
A
low-noise, low-power, and low-amplitude electrical
signaling system that enables data communication
between a supported host and another device, such as
the 3580 Tape Drive. LVD/SE signaling uses two wires
to drive one signal over copper wire. The use of wire
pairs reduces electrical noise and crosstalk. This
method of data transmission requires a cable that is no
longer than 25 meters (82 ft).
LTO.
Linear Tape-Open.
LTO-CM.
LTO cartridge memory.
LTO cartridge memory (LTO-CM).
Within each IBM
LTO Ultrium Data Cartridge, an embedded electronics
and interface module that can store and retrieve a
cartridge’s historical usage and other information.
Glossary
89