> >> Disable software compression. The tape drive will compress much
faster
> >> than the client.
> >>
> > If you can find compressible patterns in the encrypted data stream
then
> > you are not properly encrypting it. The only option would be to
compress
> > before encryption which means you can't use the compression function
in
> > the tape drive unless the tape drive also does the encryption (some
do).
> >
> > Use a lower GZIP compression level to see if it gets you better
speed
> > without sacrificing too much performance... I suspect the speed hit
is
> > going to be the encryption though.
>
> I was under the impression that _all_ LTO4 drives implemented
encryption
> (though if having the data traversing the LAN encrypted is your goal,
> you'd still have to do something).  I don't know enough about it to
know
> how good the encryption in LTO4 is, however (or for that matter, how
the
> key is specified).
> 

I'm pretty sure that LTO4 drives are required to identify an encrypted
tape if one is inserted, but the actual support for encryption is
optional. I think they use AES encryption or some variant of it.

James

------------------------------------------------------------------------------
Magic Quadrant for Content-Aware Data Loss Prevention
Research study explores the data loss prevention market. Includes in-depth
analysis on the changes within the DLP market, and the criteria used to
evaluate the strengths and weaknesses of these DLP solutions.
http://www.accelacomm.com/jaw/sfnl/114/51385063/
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