Hi, I need to setup a backup machine, and I intend to utilize today's snapshotty filesystems (which boils down to Dfly+Hammer or FBSD+ZFS -- btrfs is not there yet, and I don't feel like dwelving into Solaris). Set up such an OS with such an fs, and backup by syncing to the snapshotty fs and create a snapshot.
I wonder about the following things: 1) Any idea how does this approach scale related to more conventional solutions, like rdiff-backup or dump(8)? I see the the pros, but are there any cons? How effective is taking regular snapshots space-wise? 2) Is there any practical argument for choosing between Dfly+Hammer and FBSD+ZFS? (Feel free to give biased answers :) ) 3) I'd like to encrypt stuff, either at device or fs level. For FreeBSD there is geli(8). I haven't found anything for DragonFly. Is there any way to get at it on DragonFly? Thanks, Csaba
