Apple warns against using Time machine with Aperture running: "may lead to inconsistencies in the Aperture database". You can exclude items from Time Machine, but then even if this works, Aperture images will not get backed up.

I'm sticking with Tiger for a while and running Leopard off another partition to test things. One problem with doing this I have found is the Spotlight indexes are incompatible: each reboot will cause Spotlight to reindex all my drives.

Tags: Aperture, Backing Up, Time Machine, Leopard