Do you have the filers physically installed at the dr site?? if yes then do you have ontap up and running (configured required licenses, NFS/CIFS/iSCSI/FC, installed and cabled the diskshelves as per your capacity and performance requirement) at the DR site ???
If these have been done then you need to identify the data sets that needs to be replicated (using snapmirror - snapmirror license is installed or not at prod and DR site netapp controllers?)
Identify the RPO & RTO as per your company information security policy or whatever you call the policy in your organisation
As per RPO and RTO setup snapmirror (take a look at the snapmirror qtree/volume requirements and ontap versions)