No disruption at all , name changes will propagate to zonesets.
I have an MDS switched fabric and would like to change the name of a few devise alias but am not sure if it is disruptive.  If i change it does it update all the entries in current zones?   I am thinking that it should not have a effect since it is just a name but i want to be sure.
Any issues changing the Devise Alias on MDS switches