Data Compression - Tandberg Data SLR Serie Manuel D'installation Et Guide De L'utilisateur

Tandberg SLR Installation and User's Guide

Data Compression

Data Compression is a way to increase capacity on a storage
device. Compression ratios are normally specified to be 2:1,
meaning that it is possible to store twice as much data on the tape
as normal without
compression rate is depending on the type of data, e.g. ordinary
text files can be compressed in a much higher rate than
program files.
There are two ways to compress data, hardware compression
and software compression. The storage device very often does
hardware compression, and software compression means that
the program is compressing the data before it is sent to the
storage device. Hardware compression is much more efficient,
and works much faster than software compression.
The Tandberg Data SLR4-DC, SLR5, SLR24, SLR7, SLR40,
SLR50, SLR60, SLR75, SLR100 and SLR140 use ALDC
Hardware compression to compress data. This feature is
enabled per default but the user may turn off data compression
through the application software or specific Software Tools.
(Please refer to the Tandberg SCSI tools chapter at the end of
this manual for more information).
data compression.
Tandberg Data
However, the
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