NEW - You can now accelerate your migration and modernization with AWS Transform. Read [Getting Started](https://docs.aws.amazon.com/transform/latest/userguide/getting-started.html) in the *AWS Transform User Guide*.

# Source server migration metrics
<a name="application-source-server-migration-metrics"></a>

The source server migration metrics show an aggregated overview of the application associated servers on three topics: **Alerts**, **Data replication status** and **Migration status**. 

# Review source server alerts
<a name="application-source-server-migration-metrics-alerts"></a>

The source server **Alerts** migration metric presents an aggregated overview of the application associated servers alerts. You can look up an individual source server **Alerts** status at the **Source servers** table at the bottom of the page. 

![\[Pie chart showing server status: 2 healthy servers (66.7%) and 1 launched server (33.3%).\]](http://docs.aws.amazon.com/mgn/latest/ug/images/app-7.png)

+ A healthy server for which a test or cutover instance has not been launched will display a **Healthy** status. 
+ A healthy server for which a test of cutover instance has been launched will display a **Healthy** status. 
+ A server that is experiencing a temporary issue such as lag or backlog will display a **Lagging** status. 
+ A server that is experiencing significant issues, such as a stall, will display a **Stalled** status. 

# Review source server data replication status
<a name="application-source-server-migration-metrics-drs"></a>

The source server **Data replication status** migration metric presents an aggregated overview of the application associated servers data replication status. You can look up an individual source server **Data replication status** status at the **Source servers** table at the bottom of the page. 

![\[Pie chart showing data replication status: 66.7% healthy, 33.3% initial sync.\]](http://docs.aws.amazon.com/mgn/latest/ug/images/app-8.png)


Source server **Data replication status** can have one of the following values: 
+  **Transferring snapshot** 
+  **Initial sync** 
+  **Finalizing sync** 
+  **Lagging** 
+  **Healthy** 
+  **Stalled** 
+  **Rescanning** 
+  **Not started** 
+  **Initiating** 
+  **Creating snapshot** 
+  **Paused** 
+  **Disconnected** 

# Review the application source server migration lifecycle
<a name="application-source-server-migration-metrics-migration"></a>

The source server **Migration lifecycle** metric shows an aggregated overview of the application associated servers migration lifecycle. You can look up an individual source server **Migration lifecycle** status at the **Source servers** table at the bottom of the page. 

![\[Pie chart showing migration lifecycle status: 33.3% each for Ready for cutover, Ready for test, and Not ready.\]](http://docs.aws.amazon.com/mgn/latest/ug/images/app-9.png)


Source server **Migration lifecycle** can have one of the following values: 
+  **Stopped** 
+  **Not ready** 
+  **Ready for testing** 
+  **Test in progress** 
+  **Ready for cutover** 
+  **Cutover in progress** 
+  **Cutover complete** 
+  **Disconnected** 
+  **Discovered**