Pls find responses to your question
- Can this existing DFM server manage the new cluster mode stuff
No. Starting OCUM 5.1 it can only manage 7Mode or cluster Mode and not both.
- If not then do we need a separate instance of DFM running for cluster mode alone.
Yes, Install OCUM 5.1 in cluster Mode.
-When we install the new DFM and choose cluster mode during the time of install , can this DFM manage the 7 mode controllers?
No. As said earlier it can manage only either of this and not both.
Pls see the following getting started video on OCUM 5.1
Installing & configuring on Windows for storage systems running Data ONTAP in 7 Mode and Cluster Mode