Time Machine makes a snapshot of your files every hour. Incrementally backing up all files every hour so that you can access them in reversed chronological order isn't that hard with standard Unix utilities like rsync.
<sep/>developers receiving the pre-release software that Mac OS X 10.5 Leopard [...] will officially support ZFS, albeit restricted to a read-only implementation with which no ZFS pools or filesystems can be<sep/>
I played around to find out how well ZFS is already implemented in 10.5. Here is what I did:
First, I simply added two SATA-disks with the following command-line: (I’m using files as disks now, because its much faster to play with.)
Space-efficient and fast snapshots. A snapshot allows you to see your filesystem as it was some time in the past. ZFS is designed to snapshot a filesystem in constant time, no matter how much data you have, or how frequently you snapshot it. Moreover, the
Parmis les quelques nouveautés de Léopard, on a lu ces derniers mois, plusieurs rumeurs sur l'intégration d'un nouveau système de fichiers, le ZFS, qui présente une révolution dans le domaine du stockage de données.