Extended File Attributes are very useful but will files in SAFE have capability to acknowledge user set attributes, in the way that many file systems can do?
The abc’s of this outlined here: http://www.linux-mag.com/id/8741/
In essence it’s a route to holding small amounts of date in a single file rather than spawning inodes and files for each data point.
In Linux, many file systems support it such as the following: ext2, ext3, ext4, jfs, xfs, reiserfs, btrfs, ocfs2 (2.1 and greater), and squashfs (kernel 2.6.35 and greater or a backport to an older kernel). Some of the file systems have restrictions on extended file attributes, such as the amount of data that can be added, but they do allow for the addition of user controlled metadata.