5xx Server Errors
HTTP 507 Insufficient Storage
The server does not have enough storage to store the representation needed to complete the request (WebDAV).
When is 507 used?
- Disk full on server
- Storage quota exceeded
How to handle a 507 response
The problem is on the server side. Check server and proxy logs, retry idempotent requests with exponential backoff, and alert on sustained 5xx rates.
Check the status code a URL returns from the command line:
curl -s -o /dev/null -w "%{http_code}\n" https://example.comHow to return 507 from your server
Node.js (Express)
res.status(507).json({ message: 'Insufficient Storage' });Python (Flask)
return {"message": "Insufficient Storage"}, 507Go (net/http)
w.WriteHeader(507)Frequently Asked Questions
What does HTTP 507 mean?
507 Insufficient Storage: The server does not have enough storage to store the representation needed to complete the request (WebDAV).
Is 507 an error?
Yes. 507 is in the 5xx Server Errors class. Server errors: the server failed to fulfil an apparently valid request.