Thanks Gidi for your reply.
Sorry i forgot to tell you that !
version is NetApp Release 8.3.1: Mon Aug 31 12:42:08 UTC 2015 clustered mode
Will it be easy to plug the new shelf into the existing daisy chain ?
Edit : i read somehow, and found also some docs that i had when i first installed it (please see attached pictures)
In fact it seems that adding a shelf do not need to add links between the all the shelf and the controller but only between shelf, exactly lake a daisy chain.
This is a good new as it seems simple.
And then it seems i'l be able to create aggr that won't be replicated.
Do you know if we can do it while running or should we do a takeover then shut down then physical plug then start again.
Any help is apreciated 🙂