From what I see, both the 3220/4350 support FC targets.
SO, I am not sure about your comment. I use SAN on my nodes.
You can set up one or more vServers (very similar, but slightly different than a vFiler)
to serve FC/iSCSI LUNS and/or NFS/CIFS traffic

In my case (I am a partner and did my own Professional Services work),
I was able to procure a new FAS3170 pair with a TON of disks
(enough to split betwixt 4 other heads!)

I staged my data one or a few volume(s) at a time. 
WIth tools, I was able to use the equivalent of SnapMirror 
to send traffic to the new Clustered ONTAP. After the data
was migrated we updated maps and pointed to the new locations.

It took about three months, but I had something like 400 volumes to move.
Got it done.

Your milage will vary. Bottom line, it would likely be best to secure
the use of NetApp Professional Services to aid in the migration effort
if you have a large/complicated installation.


--tmac

Tim McCarthy
Principal Consultant

          

        Clustered ONTAP                                                        Clustered ONTAP
 NCDA ID: XK7R3GEKC1QQ2LVD           RHCE6 110-107-141           NCSIE ID: C14QPHE21FR4YWD4
     Expires: 08 November 2014              Current until Aug 02, 2016         Expires: 08 November 2014



On Wed, Nov 6, 2013 at 3:50 PM, John Stoffel <john@stoffel.org> wrote:

tmac> It may be a tiny bit more complicated, however, after you
tmac> administer it for a short while you will find it is very close
tmac> to 7-mode.

tmac> I now prefer it to 7-mode due to many enhancements (too many to
tmac> list mind you).

But what about the limitations?  We looked at it when we moved up to
3220s and 3250 pairs, but in particular the vFilers not being able to
do SAN FC LUNs was a big turn off for us.  I wanted to setup a certain
group in a vFiler, but since they are FC only mostly, it was a no-go.

We're currently running 8.1.2 in 7-mode and fairly happy.  Thinking up
upgrades, but if it ain't seriously broke, why bother?

Also, how would we migrate from 7-mode to cluster mode with a minimum
of hassle?