---
title: Subtree replication (advanced)
description: Configure PingDS subtree replication by splitting data across multiple backends, each with its own replication domain for a specific base DN.
component: pingds
version: 7.5
page_id: pingds:config-guide:repl-subtree
canonical_url: https://docs.pingidentity.com/pingds/8.1/config-guide/repl-subtree.html
llms_txt: https://docs.pingidentity.com/pingds/llms.txt
docs_for_agents: https://developer.pingidentity.com/build-with-ai/docs-for-agents.md
revdate: 2023-08-31T10:25:31Z
keywords: ["Features", "LDAP", "Replication", "Setup & Configuration"]
superseded_by: https://docs.pingidentity.com/pingds/8.1/config-guide/repl-subtree.html
---

# Subtree replication (advanced)

|   |                                                     |
| - | --------------------------------------------------- |
|   | This information applies to *advanced* deployments. |

To configure subtree replication, split the data across more than one backend, each with its own replication domain.

For example, use different backends for `ou=People,dc=example,dc=com` and other `dc=example,dc=com` data:

* Configure a backend and replication domain for everything in `dc=example,dc=com` except `ou=People,dc=example,dc=com`.

* Configure a separate backend and replication domain for `ou=People,dc=example,dc=com`.

The backend `base-dn` and the replication domain `base-dn` settings must match in each case.

Subordinate backends include important requirements and limitations. Before you implement this feature, read [Subordinate backends](import-export.html#split-data) carefully.