Thanks for that Neil.  I never used the NDMP stu as I knew ahead of time
the performance was less, but I had no idea it was that bad.

~JK

"Conner, Neil" wrote:
> 
> NetBackup has a bug when writing NDMP duplications.  It affects writes within 
> the NDMP stu, so it doesn't matter where the source is coming from (either 
> from another drive within the stu, or from a non-NDMP stu).  Performance was 
> an abysmal 500Kb/sec - a whopping 10-fold decrease in performance compared to 
> duplicating to a non-NDMP storage unit.
> 
> The developers know about it.  I opened a case on this and it was originally 
> treated as an enhancement request, but I got it elevated to bug status.  I'm 
> still waiting for the fix.  In the mean time, the best way to handle NDMP 
> duplication is to have the NDMP stu as the source and a non-NDMP stu as the 
> destination.
> 
> Neil
> 
> -----Original Message-----
> From: Jeff Kennedy [mailto:jlkennedy AT amcc DOT com]
> Sent: Tuesday, September 10, 2002 12:58 PM
> To: Steven Weller
> Cc: NBU List
> Subject: Re: [Veritas-bu] Duplication with NDMP
> 
> Sure can, they duplicate just like every other tape.  You can use the
> NDMP stu or the master/media server, using the NDMP stu drops
> performance by 25%+.
> 
> Use Vault or just plain 'ol duplicate.
> 
> ~JK
> 
> Steven Weller wrote:
> >
> > Is is possible to duplicate ndmp tapes? I have gone
> > through both admin guides but cannot find a clear
> > procedure on this.
> > Any help is appreciated.
> >
> > Steve
> >
> > __________________________________________________
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> 
> --
> =====================
> Jeff Kennedy
> Unix Administrator
> AMCC
> jlkennedy AT amcc DOT com
> _______________________________________________
> Veritas-bu maillist  -  Veritas-bu AT mailman.eng.auburn DOT edu
> http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu

-- 
=====================
Jeff Kennedy
Unix Administrator
AMCC
jlkennedy AT amcc DOT com