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5075xx
5xx — Server Error

Insufficient Storage

The server is unable to store the representation needed to complete the request.

What it means

The HTTP 507 Insufficient Storage status code belongs to the WebDAV protocol extension. It indicates that the server cannot allocate enough hard drive space or memory allocation to successfully save the uploaded data file or update a resource configuration state.

How it works

  • 1The client sends a file upload or a `PUT`/`PROPPATCH` asset action request.
  • 2The backend disk operating system reports that the file system partition has 0 bytes left.
  • 3The server catches the storage exception allocation error and returns 507.

Why you're seeing this

  • • The physical hard drive or SSD volume holding the application data is full.
  • • The current system user running the process has met their OS disc quota limit.

How to fix it

  • • SSH into your server and run the command `df -h` to check disk volume allocation statistics.
  • • Delete logs, temp files, or expand the cloud storage volume block (e.g., AWS EBS).

Framework Implementations

Node.js (Express Check)

app.post('/upload', (req, res) => {
  checkDiskSpace('/').then((diskSpace) => {
    if (diskSpace.free < req.headers['content-length']) {
      return res.status(507).send('Server storage capacity reached.');
    }
  });
});

Real-Life Scenarios

Use this code when building file-hosting systems, cloud drives, or WebDAV servers to inform users that their storage quota or the server's physical drive partition is full.

Cloud Server Disk Full

A developer sets up a Nextcloud or ownCloud instance. The host server's local SSD hits 100% usage capacity. When a user syncs a folder, the server throws a 507.

HTTP Transaction

1. Client Request

PUT /dav/files/my-movie.mp4 HTTP/1.1
Host: storage.example.com
Content-Length: 900000000

2. Server Response

HTTP/1.1 507 Insufficient Storage
Content-Type: application/xml

<D:error xmlns:D="DAV:"><D:insufficient-storage/></D:error>

SEO Implications

Treatable like a 500 error code. Bots will drop indexing coverage if files or web directories return 507 codes.

Related Codes

413500