Are you _sure_ you can't run at the latest firmware levels?  We run our
drives in 9840 emulation mode and we upgraded the firmware as recently
as February.

As to performance, the host should see the drive as a very fast, high
capacity 9840.  You should still get the benefits of the faster drive
even though it is pretending to be something else.  I think the
emulation refers to the command set the drive recognizes.

On Wed, 2003-05-14 at 08:06, support.cphvt-s AT sas DOT dk wrote:
> fyi. 
> We run STK 9940A on the SAN with a HP-UX 11.x Veritas Netbackup Media
> server. 
> However! HP do not yet support STK9940 native so we have to run the
> STK9940A
> with 9840 emulation.
> The consequence is that we cannot run at the latest firmware of the
> tape
> drives.. and we if we 
> upgrade to 9940B we will not be able to gain advantage of the
> performance
> since we will still have 
> to run as 9840 emulation. 
> 
> There is also the potential configuration difficulty in the case of a
> robot
> with both 9840 native and 9940 drives running as 9840 emulation.
> 
> So... if you have a HP-UX system try to exert pressure..sorry
> encourage.. HP
> to support STK9940 native before purchase !
> rgds martyn  
> 
> -----Original Message-----
> From: Jack L. Forester [mailto:jack.l.forester AT lmco DOT com]
> Sent: Wednesday, May 14, 2003 1:48 PM
> To: nbu-list
> Subject: RE: [Veritas-bu] Media Types
> 
> 
> We're using STK 9940A drives here.  I regularly get 36MB/sec on some
> of
> my backups hand have some tapes that have over 600GB on them.  I just
> got 2 9940B drives installed for evaluation purposes.  I can't wait to
> test drive them. :)
> 
> On Tue, 2003-05-13 at 17:08, Quarantine wrote:
> > StorageTek 9840/9940.  Still don't think there's anything faster out
> > there.
> > 
> > Matt
> > 
> > 
> > -----Original Message-----
> > From: Karl.Rossing AT Federated DOT CA [mailto:Karl.Rossing AT Federated 
> > DOT CA] 
> > Sent: Tuesday, May 13, 2003 5:01 PM
> > To: veritas-bu AT mailman.eng.auburn DOT edu
> > 
> > I'm looking into a new tape library. I've done a media analysis of 
> > Mammoth, Mammoth2, SDLT, SDLT320, LTO and LTO2.
> > 
> > So far LTO2 is winning out on Cost/GB and write speed(reliability
> will
> > be 
> > a question for another day).
> > 
> > I'm wondering if there are other media types that i should consider?
> > 
> > Thanks,
> > Karl
> > _______________________________________________
> > Veritas-bu maillist  -  Veritas-bu AT mailman.eng.auburn DOT edu
> > http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
> > _______________________________________________
> > Veritas-bu maillist  -  Veritas-bu AT mailman.eng.auburn DOT edu
> > http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
> -- 
> Jack L. Forester, Jr.
> Sr. UNIX Systems Administrator
> Lockheed Martin Information Technology
> (304) 625-3946
> 
> 
> _______________________________________________
> Veritas-bu maillist  -  Veritas-bu AT mailman.eng.auburn DOT edu
> http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
> _______________________________________________
> Veritas-bu maillist  -  Veritas-bu AT mailman.eng.auburn DOT edu
> http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
-- 
Jack L. Forester, Jr.
Sr. UNIX Systems Administrator
Lockheed Martin Information Technology
(304) 625-3946