I concur with everything except the last statement regarding DDS for
NDMP.  NDMP as a protocol supports it as do several vendors.  Of the
major NDMP backup software vendors only Veritas does not support DDS.

~JK

Steve Curry wrote:
> 
> Yucel,
> 
> We backup close to 350TB a week over NDMP.  The thing is that it either
> works or does not, there is no middle ground.  It seems to be the most
> efficient way for us to get the data off our NetApp filers.  It puts
> about a 15% hit cpu wise on our filer and seems to climb about 5% for
> each additional stream (although I wouldn't recommend more than 2
> streams on a busy box).  The things that I don't like about NDMP include
> the fact that file history is very difficult to capture and therefore on
> most of our boxes, we do not capture that data.  This means if someone
> needs to restore a file or directory, I have to restore the whole volume
> to our spare filer and pull that data off.  Filers are very reliable
> though and because of snapshots that is a rare case.  I also wish that
> you could do dynamic drive sharing with NDMP host, but you can't for
> now.  Veritas does however promise that feature sometime next year I
> think.  We'll see... ;)
> 
> If there is anything else you want to ask me, please feel free.
> 
>   Steve Curry
>   Guardian of Y! Production Data
>   Yahoo! Inc.
> 
>   (e)  scurry AT yahoo-inc DOT com
> 
> 
>  #-----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 erbilgic.ym AT pg DOT com
>  #Sent: Thursday, September 26, 2002 7:43 AM
>  #To: veritas-bu AT mailman.eng.auburn DOT edu
>  #Subject: [Veritas-bu] NDMP expectations
>  #
>  #Hi All,
>  #
>  #I remember reading a lot about NDMP and issues using it.  Does anyone
> have
>  #good/bad experiences using NDMP to backup Solara (EMC) or any other
> NAS
>  #box?
>  #Especially at a 2+ Terabytes range?
>  #
>  #I would very much be interested in your feedback.
>  #
>  #Have a great day.
>  #
>  #Regards,
>  #
>  #Yucel
>  #
>  #---------------------------------------------------------
>  #Yucel M. Erbilgic
>  #erbilgic.ym AT pg DOT com
>  #(513) 945-1859
>  #
>  #
>  #
>  #
>  #_______________________________________________
>  #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

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