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


The source server migration metrics present an aggregated overview of your source servers, focused on three topics: **Alerts**, **Data replication status**, and **Migration status**.

## Understand source server alerts


The source server **Alerts** migration metric presents an aggregated overview of the application associated servers alerts. You can look up an individual source server's **Alerts** in the **Source servers** table at the bottom of the page. 
+ A healthy server for which a test or cutover instance has not been launched displays a **Healthy** status. 
+ A healthy server for which a test of cutover instance has been launched displays a **Healthy** status. 
+ A server that is experiencing a temporary issue such as lag or backlog displays a **Lagging** status. 
+ A server that is experiencing significant issues, such as a stall, displays a **Stalled** status. 

## Understand data replication status


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

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

## Understand the migration lifecycle metric


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

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