Hi Stefano,

What do you prefer, a fast backup or a reliable one ?
Some people say that TSM is the lowest backup solution
on the market. You may find some sites where NSR or NBU
is faster than TSM, but how many companies are no longer
able to use their NSR backup system because it is over
loaded ?

In your case, you do not seem to have a huge amount of
data (130 GB) for this client.

Is your NT box is not powerfull enough, upgrade it !
rv

> -----Message d'origine-----
> De : Stefano Massi [mailto:Stefano_Massi AT SACMI DOT IT]
> Envoyé : jeudi 15 mars 2001 15:42
> À : ADSM-L AT VM.MARIST DOT EDU
> Objet : TSM vs NSR Performance
> 
> 
> Hi all,
> 
> we are using TDP for SAP R/3 v3.1.0.4 for NT/Oracle, on a 
> client connected
> to a TSM Server 4.1.2.0 (Windows NT) through a Gigabit 
> network. An online
> backup of the whole DB (about 130 MB), directly to DLT tapes with two
> sessions, lasts over 2 hours, that means about 60 GB/h.
> 
> Before migrating to TSM, we were able to back up the same 
> database in about
> 1 hour and 15 minutes (about 105 GB/h) using Legato NSR.
> 
> I tried to change network parameters to improve the data 
> transfer rate, but
> without success. So I tried to backup to disk storage pools 
> and I got a
> poor 30 GB/h.
> 
> Finally, I decided to define disk storage pools in EMC2 
> storage disks, back
> up directly to them, and I obtained about 107 GB/h! But my 
> customer doesn't
> want to "waste EMC storage space for TSM storage pools", so 
> I'm looking for
> an alternative  solution...
> 
> Any ideas?
> 
> Thanks in advance,
>                Stefano Massi
>