David/Mark,
Thanks a lot for your input. Veritas confirmed the same thing pretty much after 
they did testing in their lab. Even inside veritas support they had different 
opinion about the dup process, so had to try it out. Also, i don't know if it's 
marketing or technical benefit, Veritas tech suggested to use NBU 5.0 since it 
addressing duplication in better way, whatever it means. I have NBU 5 so i just 
have to try it out.
Thanks again.

Oleg

> 
> From: "David Chapa" <david.chapa AT adic DOT com>
> Date: 2004/03/15 Mon PM 02:39:28 EST
> To: "Oleg Ivanov" <o.ivanov AT verizon DOT net>, 
>       "Donaldson, Mark" <Mark.Donaldson AT experianems DOT com>, 
>       "bu" <veritas-bu AT mailman.eng.auburn DOT edu>
> Subject: RE: RE: [Veritas-bu] Tape duplication
> 
> You can absolutely do what you are outlining.  Since NetBackup is image
> based and not "tape" based, the media density does not play a role
> whatsoever in your duplication plan.
> 
> In the past when I was a consultant, I set up a number of sites that
> duplicated from one media type to another.  As Mark has pointed out, it
> is based on the destination storage unit you have configured.
> 
> David
> 
> David A. Chapa * Technical Advisor, Technical Marketing * ADIC *
> 720.249.5836 * david.chapa AT adic DOT com
> 
> Pathlight VX - Integrated Disk-to-Tape Backup -
> http://www.adic.com/gopathlightvx
> 
> 
> -----Original Message-----
> From: veritas-bu-admin AT mailman.eng.auburn DOT edu
> [mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu] On Behalf Of Oleg
> Ivanov
> Sent: Friday, March 12, 2004 1:11 PM
> To: Donaldson, Mark; bu
> Subject: Re: RE: [Veritas-bu] Tape duplication
> 
> That's exactly what i was thinking, but i am getting conflicting
> information from veritas support itself. some tech say yes and some no.
> I would try it, but i have two librarys in different offices, so before
> i tear one config a part i want to make sure i can do it. 
> I will let you know when veritas tech will give me call back with
> information.
> Thanks Mark.
> Oleg
> 
> > 
> > From: "Donaldson, Mark" <Mark.Donaldson AT experianems DOT com>
> > Date: 2004/03/12 Fri AM 10:50:33 EST
> > To: "'Oleg Ivanov'" <o.ivanov AT verizon DOT net>, 
> >    bu
> >      <veritas-bu AT mailman.eng.auburn DOT edu>
> > Subject: RE: [Veritas-bu] Tape duplication
> > 
> > I haven't actually done it but it should be easy.  Your tape type is
> > determined by which Storage unit you have, right?  Different drive
> types
> > should be in different STU's.
> > 
> > When you made the primary copy, you specified a storage unit that uses
> the
> > source tape for the tape type you wanted, for example, LTO.  When you
> make a
> > duplicate, just specify the STU associated with the destination type
> you
> > want, like SDLT, and it'll use that STU and tape type.
> > 
> > -M
> > 
> > -----Original Message-----
> > From: Oleg Ivanov [mailto:o.ivanov AT verizon DOT net]
> > Sent: Thursday, March 11, 2004 2:03 PM
> > To: bu
> > Subject: [Veritas-bu] Tape duplication
> > 
> > 
> > Hi All,
> > 
> > Has anyone performed tape/image duplication from LTO-2 to SDLT drive
> and
> > back? please share how you did it.
> > Thanks
> > 
> > Oleg Ivanov
> > 
> > 
> > _______________________________________________
> > 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
> > 
> 
> _______________________________________________
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>