>
> After feedback from the list I realized that I was
> using data compression incorrectly by using hardware
> compression as well as unix with compression
> directives, that has been changed to hardware
> compression only.
>
> In addition I verified that I have all 100/200 LTO
> Ultrium tapes loaded in the Jukebox but....
>
> I am seeing tape capacity figures that are all over
> the place. Some show Full at 181GB and 169GB and that
> makes sense but I am also seeing some show Full at
> 335GB and 362GB which does not make sense.

But possible.  Some data (especially from some databases) is highly
compressible.  2:1 is just a target... impossible for already compressed
data, easy for other types of data.

If you have concerns about the compressibility, just go ahead and do
some sample restores from that volume (some near the front, some near
the back) and make sure it's all good.

> If I have a 100GB tape that should only be able to
> show 200GB max compressed how am I getting figures
> over 200GB? any ideas?

200GB is not a max.


--
Darren Dunham                                           ddunham AT taos DOT com
Senior Technical Consultant         TAOS            http://www.taos.com/
Got some Dr Pepper?                           San Francisco, CA bay area
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