root file system full

Hi

I have a Solaris 2.5.1 system. Recently my file system is full and i couldn't find what flood my root file system.

Anyone can suggext any directories i should look out for.
I am using Samba and Patrol agent. I am just usng this server as a file server, users cannot login into the system, they just can view and read the files in Microsoft Windows based client machines.

I'm not familiar with Solaris but I'm sure many of the commands are similar.
Have you done a du -h on the / directory? That should show you what's taking up the space.