Yes.  They've been out for about 5 months.
http://www-03.ibm.com/press/us/en/pressrelease/21429.wss

Austin

On 9/13/07, Brad Hillebrand <brad.hillebrand AT gmail DOT com> wrote:
> OK, so the LTO-4 drives have a hardware encryption option?  How long have
> these been out?
>
>
> On 9/12/07, Austin Murphy < austin.murphy AT gmail DOT com> wrote:
> > On 9/12/07, Brad Hillebrand < brad.hillebrand AT gmail DOT com> wrote:
> > > Does anyone have any experiences with the Sun/StorageTek T10000 tape
> drive?
> >
> > I don't use them, but I did some research.
> > One gotcha that I came across was the writing speed.  They can only
> > write at either 120 MB/sec or 50 MB/sec.  There is no in between. Your
> > disk staging or virtual tape better be able to spit out the data at
> > one of those rates or the thing will shoe-shine like crazy.
> >
> > LTO-4 drives are likely to be easier to feed data and a lot cheaper.
> > I haven't compared prices with the hardware encryption options, but
> > w/o the encryption the drive prices are something like $5k vs. $30k.
> >
> > Also LTO-4 native capacity is 800 GB vs 500 GB for the T10k.  Both can
> > write at 120 MB/Sec.
> >
> > Austin
> >
>
>
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