What it means
The server cannot store the representation needed to complete the request (out of disk space or quota). Originates in WebDAV.
Common causes
- Disk full
- User storage quota exceeded on a WebDAV or cloud drive
How to fix it
As a client or visitor
Free up space in your account or upgrade the quota.
As the site or API owner
Monitor disk usage and enforce quotas with a clear message.
Example response
HTTP/1.1
HTTP/1.1 507 Insufficient Storage
Date: Tue, 07 Oct 2025 09:30:00 GMT
Server: nginx
Content-Length: 0Specification
FAQ
› 507 vs 413?
413: this one request is too large. 507: the server has no room left to store it.
› Is 507 a permanent error?
It lasts until space is freed, so retrying soon will not help.