Quantum 1200 Series DAT Autochanger Instrukcja Użytkownika Pobierz pdf (Strona 132)

Glossary

SDLT 600 Product Manual 116

Backup A copy of a file, directory, or volume on a separate storage

device from the original, for the purpose of retrieval in case the original is

accidentally erased, damaged, or destroyed.

Bad Data Block A block that cannot reliably hold data because of a

media flaw or damaged format markings.

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 SDLT 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. The

internal model of tape has two bezels: a library bezel and an internal

bezel.

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. SDLT 600 supports block sizes up to

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 The 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 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.

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Quantum 1200 Series DAT Autochanger Instrukcja Użytkownika Strona 132