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Glossary
storage cells The locations where cartridges are
kept in the library.
StorageTek L-Series Library Admin An
optional interface that simulates internet browser
operation for the library. This is an upgrade of the
Library Status tool.
submenu A menu related to and reached from a
main menu. (IBM)
subnet mask A four-byte notation that resolves
routing within a network. See also Ethernet address,
Internet Protocol (IP) address, library name.
Super DLT The next generation of DLT (Digital
Linear Tape) products, which remains a standard
for mid-range operating systems.
swap cell The cell among the reserved cells into
which the robot might temporarily place a
cartridge.
T
tape See magnetic tape.
tape drive See drive.
tape transport interface (TTI) An interface to
control/monitor tape movement.
target A machine-readable optical pattern used to
determine robot position. See also SCSI device.
theta motor The motor responsible for the lateral
movement of the hand assembly in the library.
thumbscrew The large, cylindrical, rough-edged
handle on the rear of a drive tray that, when a
person turns it, lets the person secure the drive to
the drive column.
U
Ultrium The single hub implementation of the
LTO specification for tape storage devices.
Glossary-8
V
V Volts, usually expressed as VAC (volts
alternating current) or VDC (volts direct current).
VAC Volts alternating current.
VDC Volts direct current.
VOLSER See volume serial number.
volume A data carrier that mounts and dismounts
as a unit; for example, a reel of magnetic tape or a
disk pack.
volume serial number (VOLSER) An
alphanumeric label that the host software uses to
identify a volume. It attaches to the spine of a
cartridge and is both human- and machine-
readable.
W
warning count A user-determined limit that
indicates the number of times a cleaning cartridge
will be used before it must be exported from the
library.
write-enabled A setting on cartridge tapes that
allows data to be written on the tape.
write-protect (WP) To set the switch on a
cartridge tape to prevent data from being written
on the tape. Reading data is still possible. See also
file-protect.
Y
Y-cable A communications cable that has two
connectors at one end and one connector at the
other.
Z
Z carriage The portion of the robot on which
the hand assembly rests.
Z motor The motor responsible for the vertical
movement of the hand assembly in the library.
Seventh Edition
MT9104
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