Thanks Nick, your snippet is very helpful. > Point it at anything with a modification time <= when the snapshot was > created. Obviously anything inside the snapshot will have this property; > as will a file you create prior to creating the snapshot.
Colin, thanks for your explanation. But I'm definitely misunderstanding something here: if I specify a file that was last modified 10 years ago, how does that help you? I should probably take a look at the source code ... :) On Thu, 23 Jan 2014 06:57:59 -0800 Colin Percival <[email protected]> wrote: > On 01/23/14 03:43, Albert Peschar wrote: > > I've been using tarsnap for some months to do all kinds of backups. > > Now, I'd like to use tarsnap to archive ZFS filesystem snapshots. What > > is unclear to me is whether and how I should be using the --snaptime > > option. > > Point it at anything with a modification time <= when the snapshot was > created. Obviously anything inside the snapshot will have this property; > as will a file you create prior to creating the snapshot. > > > And would someone be willing to explain why this is at all necessary? > > As the man page says, it avoids a race condition. ;-) > > I'm not sure how to state that any clearer... > > -- > Colin Percival > Security Officer Emeritus, FreeBSD | The power to serve > Founder, Tarsnap | www.tarsnap.com | Online backups for the truly paranoid
