Hi, That should be enough, since there are no ports assigned to it nothing should be able to use it. 
Hello What is the best practice around disabling VLAN 1 on a switch?  I have two N4032 switches that are part of a SAN fabric. Two fault domains are configured on the two switches on VLAN 100 and VLAN 100. I would just like to follow the best practice with regards to VLAN 1. No IP address is assigned to VLAN 1 and no ports are assigned to it.
Dell N4032 switch - disable VLAN 1