EC2/EBS Quota & Limit Diagnostic Troubleshooter (Part 4)
Use the interactive troubleshooter below to identify your EC2/EBS quota or limit 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 |
|---|---|---|---|---|
| 5 | Linux OS Boot Failure (Volume Attachment Limit) | Attaching more than 40 volumes can cause boot failures. This number includes the root volume, plus any attached instance store volumes and EBS volumes. | The Linux boot process cannot safely initialize when overloaded with more than 40 attached volumes. | Stop the instance, detach any volumes that are not essential to the boot process, and then reattach the volumes after the instance is running. |
| 6 | Fast Snapshot Restore Region Quota Exhaustion | Fast snapshot restore quotas... You can enable up to 5 snapshots for fast snapshot restore per Region. | The account hit the strict maximum limit of 5 FSR-enabled snapshots per Region. | N/A |
| 7 | Storage Optimized Instance Attachment Limit | The d3.8xlarge and d3en.12xlarge instances support a maximum of three attachments, including the root volume. | Adding a network interface or EBS volume exceeds the strict 3-attachment hardware limit on these specific instances. | N/A |
| 8 | AWS Outposts Root Volume Size Limit | The root volume for an instance on an Outpost rack must be 30 GB or smaller. | AWS Outposts rack imposes a strict 30 GB maximum size constraint on instance root volumes. | You can specify data volumes in the block device mapping of the AMI or the instance to provide additional storage. |