I'm running a pair of SZ124s on v220.127.116.11.1161 and recently clustered them. Clicked the "rebalance APs" button and now I see an even split of ~200 assigned to each of the two SZs.... but, when checking the AP page and enabling the Data Plane column, only 3 APs are using one of the controllers' data plane while all the others are locked on the second SZ. Doesn't seem very balanced to me, is this "expected behaviour"?
Can you try a couple more time to rebalance and also please check below article that gives better understanding on "rebalancing AP's" behavior.
Thanks Vineet, I understand it a little better thanks to the article you posted.
I've tried rebalancing a couple times today but still only 4/400 APs using one of the dataplanes while the control plane seems pretty well balanced.