EC2/EBS Throttling / Quota Diagnostic Troubleshooter (Part 3)
Use the interactive troubleshooter below to identify your EC2/EBS throttling or quota symptom, review the raw evidence, understand the root cause, and apply the recommended fix.
🚨 Step 1: What specific error symptom are you experiencing?
Please click the most accurate description:
Quick Reference Table
| # | Scenario | Key Error Signal | Root Cause | The Fix |
|---|---|---|---|---|
| 1 | quota, LimitExceeded — ResourceLimitExceeded on snapshot copy | "There is a limit of 20 concurrent snapshot copy requests per destination Region. If you exceed this quota, you receive a ResourceLimitExceeded error." | The account exceeded the strict service quota of 20 concurrent snapshot copy requests per destination AWS Region. | Wait for one or more of the copy requests to complete before making a new snapshot copy request. |
| 2 | LimitExceeded — ConcurrentSnapshotLimitExceeded on same volume | "If you receive a ConcurrentSnapshotLimitExceeded error while trying to create multiple concurrent snapshots of the same volume, wait for one or more of the pending snapshots to complete..." | A volume reached its concurrent pending snapshot limit (1 for st1/sc1 volumes, or 5 for other volume types). | Wait for one or more of the pending snapshots to complete before issuing another snapshot command. |
| 3 | quota — AMI creation or sharing quota exceeded | "If you exceed your quotas and you want to create or share more AMIs, you can do the following:... Request a quota increase for AMIs." | The total number of AMIs, public AMIs, or AMI sharing targets in the Region hit the account's applied quota. | Request a quota increase via the Service Quotas console, deregister unused images, or share with an Organization/OU instead of separate accounts. |
| 4 | throttl — EBS direct APIs request rate throttling | "You should also build retry mechanisms into your EBS direct APIs workflows to handle throttling, timeouts, and service unavailability." | The client application triggered bottlenecks by generating concurrent API requests that exceeded the maximum EBS direct APIs requests permitted per second. | Build retry mechanisms into the client application workflow and review EBS direct APIs service quotas to manage request rates. |