I have a need to split this one DataCenter total of 11 hosts to a 2 DC 5host / 6host DC.
The DC/5 hosts are all configured with networkA and the other DC6/ to different networkB.
You will have to setup the data centers again. The data centers are used for DRS so you have to setup any data center shares, resource pools, etc. The hosts will still remain in Virtual Center and you can add them back to the new data centers.