# 11. Cluster Reference

As of 2.0 CouchDB now have two modes of operations:
  - Standalone
  - Cluster

This part of the documentation is about setting up and maintain a CouchDB cluster.

- 11.1. Set Up
  - 11.1.1. Firewall
  - 11.1.2. The Cluster Setup Wizard
  - 11.1.3. The Cluster Setup API
- 11.2. Theory
- 11.3. Node Management
  - 11.3.1. Adding a node
  - 11.3.2. Removing a node
- 11.4. Database Management
  - 11.4.1. Creating a database
  - 11.4.2. Deleting a database
  - 11.4.3. Placing a database on specific nodes
- 11.5. Shard Management
  - 11.5.1. Introduction
  - 11.5.2. Moving a shard
  - 11.5.3. Specifying database placement
  - 11.5.4. Resharding a database to a new q value