Sun CEO Says ZFS Will Be 'the File System' for OSX
Fjan11 writes "Sun's Jonathan Schwartz has announced that Apple will be making ZFS 'the file system' in Mac OS 10.5 Leopard. It's possible that Leopard's Time Machine feature will require ZFS to run, because ZFS has back-up and snapshots build right in to the filesystem as well as a host of other features. 'Rumors of Apple's interest in ZFS began in April 2006, when an OpenSolaris mailing list revealed that Apple had contacted Sun regarding porting ZFS to OS 10. The file system later began making appearances in Leopard builds. ZFS has a long list of improvements over Apple's current file system, Journaled HFS+.'"
On the contrary, Time Machine is not a backup mechanism. Because it uses copy on write (i.e. only stores changed blocks), you will not be able to restore your entire disk from the secondary volume (unless, of course, it requires the target volume be larger than the source volume and does a quiescent backup of the entire source volume before it kicks in).
For this reason, the secondary volume requirement does not seem particularly useful.
Methinks you've got some people mixed up here. That would be Ballmer, not Jobs.