A project I peeked into but never started.
(This is ancient information that has not been followed)
Mediawiki can host its images on another server.
- Edit your LocalSettings.php
You will need to have some way of synchronising images OFF the main server (to which they are backed up) or else permit uploads to that second server.
To serve the files from a different HTTP server, you can set $wgUploadPath with a complete URL like http://example.com/images
To get the files over there, use a networked filesystem such as NFS. (You might be able to use some kind of synchronization or caching copy instead, but this can be harder to maintain without modifying the wiki to send necessary updates when files change.)
next:
-
The mw-images link farm concept needs to be rebuilt now that it’s on another box. Maybe figure this out after moving the images to another box. I could cache them here and then do the link farm.
- Outline the method for other people to use it.

ported