Will HFS+ extended attributes be lost on FreeNAS?

I have FreeNAS server partially set up on an HP Microserver, but just realized that I may lose all my extended attribute metadata on the files that come from my Macs (which is what most of my computers are). This metadata is somewhat important to me, so if FreeNAS will lose this data then maybe I need to rethink my strategy.

I was going to use FreeNAS for both Time Machine backup and as a file server, so the metadata would be relevant in both cases.

Will FreeNAS keep the metadata if I connect to it using AFP, or will it lose the metadata?