[clug] LTO-4 drive, turn on compression?

Daniel Pittman daniel at rimspace.net
Tue Aug 11 19:12:40 MDT 2009

Chris Smart <mail at christophersmart.com> writes:
> 2009/8/11 Eyal Lebedinsky <eyal at eyal.emu.id.au>:
>> ??? What 2:1? It does not exist, it is a made up number.
> I confess that I've never used compression on tapes before, ever.
> The tape says it is "800GB/1600GB compressed" so I am just going by
> what the tape says, assuming it is the way data gets written to the
> tape rather than an implementation of a particular algorithm.

Nah, most tape drives have an LZO compressor built-in, operating on small
blocks, and a canned test that favours the vendor to produce those numbers.

The second figure is a lie ^W^W marketing. ;)

✣ Daniel Pittman            ✉ daniel at rimspace.net            ☎ +61 401 155 707
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