The directory where pictures are stored in gallery 3 is known as "var/" and by default it's relative to the web app's root directory.
= Moving the pictures folder to an Amahi share (in Amahi 7/Fedora) 19 = Create the share if it's not created yet.
Follow this FAQ on [http://codex.galleryproject.org/Gallery3:FAQ#I_want_to_move_my_.2Fvar_directory how to move the var directory].
You may need to restart the httpd server.
= Moving the pictures folder to an Amahi share (Ubuntu) =