Ok, so it will be like below?
1) Create Thick LUN with any name
2) Migrate LUN to this new LUN
3) Once migration is finished, I can reaname this new LUN to desired name.
Any production impact?
new LUN will assume old LUN identitity (lun number ..and i think lun name as well, you can always change it if you like).
production impact - this operation will add i/o overhead so you if are worried you can do it during off-business hours as well as tweak copy priority.
Is there any change /advancement in thick to thin conversion process ? even in VNX2 series
We are planning for some 15TB migration. So this method of conversion will be tedious and time consuming.