Definition of replica

In Active Directory replication, one instance of a logical Active Directory partition that is synchronized by means of replication between domain controllers that hold copies of the same directory partition. Replica can also refer to an instance of an object or attribute in a distributed directory.

In the File Replication service (FRS), a computer that has been included in the configuration of a specific replica set.

A complete copy of protected data residing on a single volume on the DPM server. A replica is created for each protected data source after it is added to its protection group. With co-location, multiple data sources can have their replicas residing on the same replica volume.

A particular repository of information to be synchronized.