We have Netapp FAS3240 with 100Tb of size and we want to make DR of this storage on some other location.. over wan netwrok can any one help me with requirements as well as limitation and how to proceed for the same? or what are the steps to be followed
Sounds like you are not really looking for DR, just off-site back up?
If you just want back up, then all you need is some backup app software and some storage the other end. Then in a DR situ you go through a manual restore process to get back up and working.
Of course the hardware on the DR site and any software needs to support all your platforms. With a NetApp snapmirroring to another NetApp that's guaranteed as it's block level replication. Using different hardware will make things more complex.
If you want to buy IBM, buy the IBM hardware that's rebadged NetApp hardware!
Re: How to create DR on diffent location of NETApp with simliar or diffrent hardware manufacture
To answer your first question, replicating NetApp to NetApp is building to the O/S although is licensed separately like many NetApp features. Replicating between NetApp and non-NetApp requires extra software, that you either buy one of the many vendors or you write it yourself in some scripting language or similar.
To your second question: I wouldn't say there'd be problems, especially if you are sticking to products in NetApp's interoperability list. But I think anyone would acknowledge, the more different vendors in a solution, the more room for issues.