On Wed, Nov 17, 2010 at 9:14 AM, Venkatesh Srinivas <m...@acm.jhu.edu> wrote:
> On Wed, Nov 17, 2010 at 11:51 AM, David Leimbach <leim...@gmail.com> > wrote: > > I'm giving consideration to maintaining a venti-based setup for my house > for > > all the digital media we have (since getting our Apple TV, we've had more > > stuff to stream around the house). > > I've just now started playing with things like vac/unvac, to backup and > > extract trees of my HFS+ file system and I wonder about a few things. > > What do people do if they ever lose their venti scores? Seems like this > is > > "handle-less" data now, and fairly useless. > > I figure I could keep a vac archive of venti scores, then I'd only need > to > > "remember" one, and name the files I store the scores in reasonably, but > if > > that's lost... what are my options? > > Dave > > There is a script floating around (dumpvacroots or somesuch) that lets > you recover vac scores given access to the venti arenas. > > I'd be very careful with vac -m and -a on Unix; both have been at the > root of considerable data-loss on a unix venti for me. I'd recommend > vac-ing tarballs, rather than using vac's on unix trees directly. But > your mileage may vary... > This is mainly a form of secondary backup for me for now, but given what I learn about it over time, it could become a primary. Are there any open problem reports around this? I might be interested in tackling some of these, or at least trying to reproduce them. I still do some rsync based backups anyway. > > -- vs > >
