Quantum SuperLoader 3 User Manual page 294

Glossary
N
O
P
268
One thousandth of a second (.001 sec.).
millisecond (ms)
A somewhat out-of-date term used to describe a class of
minicomputer
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.
Applications that are vital to a company or
Mission Critical
organization's well-being.
Refers to the uncompressed storage capacity of a tape or
native mode
disk subsystem. for instance, a DLT 7000 tape drive can store 35 GB in
native mode and 70 GB with 2:1 compression.
An application that uses a tape drive or tape
near-on-line storage
automation system in much the same way as a hard disk drive. Provides
easy access to large amounts of critical information.
Command overhead refers to the processing time required by
overhead
the controller, host adapter, or drive prior to the execution of a command.
Lower command overhead yields higher drive performance.
To write data on top of existing data thus erasing the original
overwrite
data.
Original Equipment Manufacturer.
OEM
parallel channel architecture
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
a disk or tape drive's read channel to pack more data in the same amount
of space on magnetic media.
The maximum speed with which information moves
peak transfer rate
inside a tape drive or between drive and host. Usually measured in
megabytes per second.
SuperLoader User's Guide
Allows DLT tape drives to read/write
PRML. A technology that allows