http://www.freenas.org/features
http://cs.wikipedia.org/wiki/FreeNAS
http://www.linuxexpres.cz/praxe/freenas-sitove-uloziste-pro-skolu-nebo-domacnost-v-rezii-freenas
http://www.smallbusinesscomputing.com/testdrive/article.php/3719706/Build-a-NAS-Device-With-an-Old-PC-and-Free-Software.htm