All HTTP status codes
5xx Server Error
RFC 4918
507 Insufficient Storage
The server cannot store the representation needed to complete the request.
What it means
HTTP 507 Insufficient Storage (WebDAV) indicates the method could not be performed because the server has insufficient storage capacity to complete the request — typically a disk-full condition.
When it's used
WebDAV PUT/COPY operations when disk is full, or any storage-bound operation hitting capacity limits.
Common causes
- Disk full on the server
- S3 bucket quota exceeded
- Database storage limit reached
- Temporary storage volume out of space
How to fix it
- Free up server disk space immediately
- Implement disk-usage monitoring with alerts
- Auto-expand storage in cloud environments
- Archive or delete old data
Example response
HTTP/1.1 507 Insufficient Storage Content-Type: application/xml
SEO impact
Rare for HTML serving. If it occurs, treat as critical outage.