> Snapshots are not replacements for traditional backup/restore features. > If you need the latter, use what is currently available on the market. > -- richard
I'd actually say snapshots do a better job in some circumstances. Certainly they're being used that way by the desktop team: http://blogs.sun.com/erwann/entry/zfs_on_the_desktop_zfs None of this is stuff I'm after personally btw. This was just my attempt to interpret the request of the OP. Although having said that, the ability to restore single files as fast as you can restore a whole snapshot would be a nice feature. Is that something that would be possible? Say you had a ZFS filesystem containing a 20GB file, with a recent snapshot. Is it technically feasible to restore that file by itself in the same way a whole filesystem is rolled back with "zfs restore"? If the file still existed, would this be a case of redirecting the file's top level block (dnode?) to the one from the snapshot? If the file had been deleted, could you just copy that one block? Is it that simple, or is there a level of interaction between files and snapshots that I've missed (I've glanced through the tech specs, but I'm a long way from fully understanding them). Ross _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
