CTDB is a cluster implementation of the TDB database used by Samba and other projects to store temporary data. If an application is already using TDB for temporary data it is very easy to convert that application to be cluster aware and use CTDB instead.
FreeNAS is a free NAS (Network-attached storage) server, supporting: CIFS (Samba), FTP, NFS, rsync, AFP protocols, S.M.A.R.T., local user authentication, and software RAID (0,1,5), with a web-based configuration interface. FreeNAS takes less than 32 MB on