As of the Summer of 2012, the rsync.net storage platform is based on ZFS. We utilize raidz-3 (a raid array that can withstand 3 failed disks, as opposed to raid-6 that can withstand only 2 failed disks) with conservatively sized (12 disk) vdevs. We also create zpools with 4 or fewer vdevs.

Our ZFS platform uses the very best practices (IT, or "disk only" firmware on our host bus adaptors and only ECC RAM) as well as very conservative (overkill, really) disk replacement and scrub schedules.

All power is conditioned and backed by battery banks which are backed by diesel generators. Physical machines are connected to at least two distinct power circuits.