I received our order of a new FAS3250 along with a 7 shelves.  
I want to use the shelves on our FAS3240 for now. We'll be doing a head swap in the future.

I got 5 of the shelves attached today and then realized they were all owned by the FAS3250 that we got.
On top of that, it looks like all disks are in an aggregate.  I suspect this because I forced disk ownership of drive 0 on one of the shelves and it imported aggr0 but then renamed it to aggr0(1) and put it offline.
I tried the same thing with drive 0 of another shelf and that imported aggr0(2) and put it offline.

So, what's the best way to handle this?

disk reassign ?

My fear is if I import 144 drives using 'disk assign <disk> -s <sysid>-f', I will end up with 144 aggr0(X) offline aggregates and then have to clean all of that up.

Once the headswap is done, the FAS3240 along with the other 2 remaining shelves will be going to our DR site and I imagine I'll be doing a fresh install of OnTAP on there since there will be no root vol

Thanks!

Brian