Each instance of Active Directory Lightweight Directory Services (AD LDS) can contain one or more application directory partitions to hold application data. All application directory partitions in an AD LDS directory instance share a single schema that defines the objects and attributes that can be stored in the directory. When you create an application directory, you can create a new, empty application partition, or you can replicate one or more application directory partitions from an existing AD LDS instance.

Task Reference

Read about AD LDS application directory partitions.

Understanding Directory Partitions

Create an application directory partition.

Create an Application Directory Partition