SNAPSHOTS_FAILURE (Snapshot failure)

MGN cannot take a consistent EBS snapshot of the replicated disks.

Why it happens

AWS lists missing IAM permissions, a Service Control Policy (SCP) that blocks snapshot creation, or API throttling.

How to fix it

1. 1

   Step 1

   In CloudTrail, look for errors and throttling on CreateSnapshot calls.

2. 2

   Step 2

   Confirm the MGN IAM roles have the required permissions.

3. 3

   Step 3

   Check AWS Organizations for SCPs that block snapshot creation.

aws cloudtrail lookup-events --lookup-attributes AttributeKey=EventName,AttributeValue=CreateSnapshot --max-results 20

Source

Full guide: How to migrate VMware and physical servers to AWS →