ZFS Overview from Sun
Here’s a PDF overview of ZFS by Jeff Bonwick of Sun Microsystems. The 128-bit ZFS file system will apparently be used in Leopard to provide multi-disk data pools as well as to create data snapshots for backups. ZFS provides fast data access with lots of data integrity features. It’s a nice, easy-to-follow overview that’s well worth a look if you have any interesting in learning more about ZFS.