I have a /shared/www/example.com directory, being set up on a mirrored glusterfs filesystem (two servers). I have a /shared/www/example.com/images/ directory there, owned by root:root. Now, I want the webserver to be able to write to this directory: simple, just make the webserver the owner: server1# chown www-data:www-data images server1# ls -ld images drwxr-xr-x 2 www-data www-data 4096 2010-09-14 22:19 images Let's see what server2 thinks about it: server2# ls -ld images drwxr-xr-x 2 root root 4096 2010-09-14 22:19 images Oops, it's back to root! Now, what does server1 show? server1# ls -ld images drwxr-xr-x 2 root root 4096 2010-09-14 22:19 images As we can see, it's root again - ownership was reset, although I didn't use "chown root:root". As a result, the webserver can't upload files (or, any other process which would need a similar operation), although I initially did "chown www-data:www-data images" on one of the servers. I'm using glusterfs 3.0.5 on Ubuntu 10.04. -- Tomasz Chmielewski http://wpkg.org