Troubleshooting Efs

This handles the usual EFS headaches: mount timeouts, permission errors, slow throughput, and burst credit exhaustion. It walks you through the diagnostic tree, from verifying NFS client tools are installed to checking security groups (the number one culprit for timeouts), IAM policies, and performance modes. The skill knows to test connectivity with netcat, read CloudWatch metrics for burst credits, and switch you to Elastic throughput when needed. It also covers the less obvious stuff like VPC DNS settings and KMS key issues on encrypted file systems. Helpful if you've ever watched a mount command hang for two minutes before timing out, or gotten "access denied by server" and weren't sure if it was IAM or POSIX permissions.

Install to Claude Code

npx -y skills add aws/agent-toolkit-for-aws --skill troubleshooting-efs --agent claude-code