# AWS Elastic Disaster Recovery (AWS DRS) settings
<a name="settings"></a>

AWS Elastic Disaster Recovery includes multiple configuration options for resources consumed and produced by the service. There are three main categories that these configuration options fall into: 
+ **Replication Settings** - Configuration Options for Replication Servers.
+ **Launch Settings** - Configuration Options for Source Server Launches.
+ **Post Launch Actions** - SSM Documents associated with Source Servers after Recovery Instances launch.

 **Launch Settings** and **Replication Settings** are configurable on an individual Source Server, as well as defaults for a Region. **Default launch** settings and **Default replication** settings are initially configured while Initializing the AWS Elastic Disaster Recovery Service. A newly added Source Server is implicitly configured with the same settings defined in the **Default launch** settings and **Default replication** settings upon installation. You can adjust the individual configuration of a Source Server's Settings anytime after installation. 

**Topics**
+ [AWS DRS replication settings](replication-settings.md)
+ [AWS DRS launch settings](launch-settings-overview.md)
+ [Configuring the default post-launch actions](post-launch-action-settings-overview.md)