How to Balance Exchange Database by Activation Preference

Open Exchange Powershell:

cd "C:\Program Files\Microsoft\Exchange Server\V14\Scripts"

To check db state:

.\RedistributeActiveDatabases.ps1 -DagName "Your_DAG_Name" -ShowDatabaseDistributionByServer | ft

To Re-balance DB :

.\RedistributeActiveDatabases.ps1 -DagName "Your_DAG_Name" -BalanceDbsByActivationPreference