Quantum EC-LLDAA-YF-B Guia do Utilizador descarregar pdf (Página 201)

Glossary

New Template 181

millisecond (ms) One thousandth of a second (.001 sec.).

minicomputer A somewhat out-of-date term used to describe a class

of multi-user computer that was one notch below a mainframe

system. Minicomputer popularity fell with the rise in popularity

of the networked PC. Today’s server systems perform many of

the functions that were once the domain of minicomputers.

Mission Critical Applications that are vital to a company or

organization’s well-being.

N native mode Refers to the uncompressed storage capacity of a tape or

disk subsystem. for instance, a DLT 7000 tape drive can store 35

GB in native mode and 70 GB with 2:1 compression.

near-on-line storage An application that uses a tape drive or tape

automation system in much the same way as a hard disk drive.

Provides easy access to large amounts of critical information.

O overhead Command overhead refers to the processing time required

by the controller, host adapter, or drive prior to the execution of

a command. Lower command overhead yields higher drive

performance.

overwrite To write data on top of existing data thus erasing the

original data.

OEM Original Equipment Manufacturer.

P parallel channel architecture Allows DLT tape drives to read/write

multiple channels simultaneously providing an industry-leading

data transfer rate in the DLT 7000 drive. with this architecture,

data blocks are not required to be located on any particular

track or in consecutive order. This channel-independent block

structure provides a powerful write-error handling system that

allows bad blocks to be rewritten on the next available

command.

Partial Response, Maximum Likelihood PRML. A technology that

allows a disk or tape drive’s read channel to pack more data in

the same amount of space on magnetic media.

1 2 ... 196 197 198 199 200 201 202 203 204 205 206 ... 209 210

Sem comentários

Quantum EC-LLDAA-YF-B Guia do Utilizador Página 201