[CentOS] "Overlay" Filesystem Mounts?

On Tue, 15 Nov 2011, Tim Nelson wrote:

> I'm already doing this. It "works", but is quite messy. I had hoped there
> would be an actual filesystem merging function that would do this
> automagically.

Presumably it's be easy enough to knock up with fuse, but there'd be a small
performance hit compared to the symlink approach.

Why are you wanting to do this out of interest?  Are you merging filesystems
from multiple servers?

jh