More DASD

I searched archive and can only find 2-3 year old references that some
seem to not apply anymore.  We need disk for images. We use about 7-10GB
per week of images. Iseries expansion units very expensive and overkill
for this only. My image system will support image son optical or
external dasd as long as it can be seen by QNTC. I can now see shares on
some of my XP and MS exchange via QNTC. My BP is quoting me Netapp or
IBM DS400.   
 
Here is my problem we are clueless on how to hook this up, does it work
and backup of TB of data. Right now we back up quarterly to tape and
archive tapes. Got stacks of them already. 
 
I see the low end shark drives are dead but where do I start? And does
any network appliance work via QNTC? 
 
Karl Lauritzen Jr.
National Lloyds

Waco Texas 

254-717-6960