Exchange 2019: Creating new Database
In Exchange 2019 you can create new database by running below commands:
New-mailboxdatabase -Name DB1 -Server Ex1 -edbfilepath D:\ExDB\DB1\DB1.edb -logfolderpath D:\ExDB\DB1
After that you can mount it using below command:
Mount-database DB1
If you want to enable circular logging for DB then use below:
Set-mailboxdatabase DB1 ; -circularloggingenabled:$True
If you want to disable circular logging disabled then use below:
Set-mailboxdatabase DB1 -corcularloggingenabled:$false