Glossary
DLT-V4 Product Manual
61
Base Plate
An aluminum die casting that acts as the support platform for the
other modules and for the tape drive enclosure. The base plate includes the
precision mounting holes used to install tape drives into a server or tape library.
Bezel
(Also known as the faceplate.) A plastic panel that extends the face of a
tape drive so that it covers a computer’s tape drive bay opening.
BIOS
Basic Input/Output System. A set of routines that work closely with the
hardware to support the transfer of information between various elements of the
system, such as memory, disks, and peripheral devices.
Block
A sector or group of sectors. DLT-V4 supports block sizes up 16 MB
.
BOM or BOT
Beginning of Media or Beginning of Tape. The physical beginning
of the media.
BRC
Backward-read Compatibility is the ability of a current tape drive product
to read cartridges written on earlier model tape drives.
BSMI
Bureau of Standards, Metrology, and Inspection (Taiwan).
Buckling Mechanism
T
he buckling mechanism engages the media leaders on
cartridge load and disengages them on cartridge unload.
Buffer
An area of RAM reserved for temporary storage of data that is waiting to
be sent to a device. The data is usually on its way to or from the tape drive or
some other peripheral device.
Bus
The part of a chip, printed circuit board, or interface designed to send and
receive data.
C
C
The degree Celsius (°C) is a unit of temperature.
Cache
Specialized RAM used as a buffer between a fast CPU or I/O channel and
storage which has a relatively slow access time (for example, cartridge or
diskette), to avoid slowing down the former.
Cartridge Receiver
At media insertion, the cartridge receiver assembly is
responsible for guiding the media into its operating position, opening the door,
unlocking the cartridge brakes, and securing the media for operation. At media
ejection, the cartridge receiver assembly reverses the process and automatically
ejects the cartridge a fixed distance from the front of the tape drive.
CE
Council of Europe.
Compressed Capacity
Capacity after data has been processed, using either
software or hardware, to reduce storage space while maintaining data integrity.
(See also Data Compression.)
CFR
Code of Federal Regulations (United States).
CSA
Canadian Standards Association, also known as CSA International.
CUP
Code Update (a firmware update).
