We need to consider upgrading Ontap from 6.4.5 to 6.5.x (where "x" is the latest GA at upgrade time). We might consider moving to 7.x .
We have fairly extensive NFS "exports" files, several entries of which have a mix of "ro" and "rw" clauses.
I have some sort of recollection that the 6.4->6.5 upgrade has some sort of interaction with (requires some change to?) the exports file. If so, are there any recommendations, gotchas, etc. for handling this transition. (The systems are a live clustered pair; downtime must be kept to a minimum; the transition must be smooth, predictable and reliable.) Would migrating directly to 7.x be any different?
Pointers to existing documents (whether technically descriptive, or "our good/bad experience of...") would be welcome.
Thanks in advance.