I am currently using Windows Home Server for all my backups, mostly full backups of my PCs in case one of them crash, I can easily restore it. I recently got a Mac, with Os X Lion installed on it. So, I thought of buying the 2011 version of WHS, but seems they removed some features and that it is not yet fully compatible with Os X Lion. I Google search for a free home server and I found many options, including Ubuntu Server, FreeNAS and this one, Amahi. I looked around the website, read the FAQ, the Wiki and the installation guide. I have a good idea of how it works, but still have some questions for this great community!

- Is it possible to do full system backup for Windows 7, Mac Os X Lion and Linux?
- Is disk pooling with Greyhole safe? (I have read that it is still been tested?)
So, right now I am downloading Fedora 14, which from what I read is the Os I need for Amahi. I will use Amahi as a home server, to do full backups of all my systems and after been able to restore them easily in case of crash. I will only open my server when I need to do a backup, then closing it again. So, in general, does Amahi as everything a needed for a simple home server?
That is all for now, my questions may sound silly, but I just want to be sure of what I am doing before actually doing it.
Thank you!

EDIT: Any tips, guides, links or help is welcome!