Data Compression - HP StorageWorks DLT VS 40 Reference Manual

Data Compression

The DLT VS 40/80 GB tape drive offers a formatted, native cartridge capacity of
40 GB (80 GB assuming a 2:1 compression ratio) and a sustained user data
transfer rate of 3 MB/s (up to 6 MB/s with 2:1 compression).
Note:
depending on actual data.
The DLT VS 40/80 GB tape drive ships from the factory with data compression
enabled for writing. In this mode, data is always compressed when writing to the
tape, but the drive is capable of reading both compressed and uncompressed tapes.
For the drive to write uncompressed data, the data compression setting must be
changed through the software. To change it, consult the backup application
software documentation for the data compression enabling and disabling
procedure.
DLT VS 40/80 GB Tape Drive Reference Guide
Capacity may vary based upon actual stored data. Data transfer rate can vary
Introduction
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