If you go down the netbios name / DNS route, make sure your old fileserver is removed from the domain entirely and not just change its ip address etc. once data is migrated otherwise your clients will not point to the filer.
Further to the above question, is it possible to host multiple CIFS server names from the same NSeries system - without using addon products such as VFM. I usually use DNS CNAMEs to redirect old windows file servers, but in this specific case it cannot be done.
I'm pretty sure the answer is no, I will need VFM but I just wanted to make sure there wasn't another way I haven't thought of.
I would like to keep all data in the same volume (for dedupe reasons), and there will be multiple server names which all have the same shares, i.e: