On Wed, Oct 8, 2008 at 7:20 AM, Oliver Fromme <[EMAIL PROTECTED]>wrote:
> Dag-Erling Smørgrav wrote: > > FWIW, the HAMMER file system _does_ support replication to > remote targets (thus "separate"). Unfortunately they call > this feature "mirroring", which is misleading at best. > It's really rather a replication mechanism, much like the > binlog of MySQL. It can be used for various purposes, > including live mirroring, delayed mirroring, archiving, > backup and point-in-time recovery [thank-you for repeating that, BTW] > However, ZFS does exist on FreeBSD, and I think it wouldn't > be impossible to add similar features to ZFS. Possibly even as a ZFS module? This might be something better addressed at the ZFS project level --- but the next question is: does FreeBSD support ZFS modules? > Another possibility would be to extend gjournal by adding > time stamps to journal transactions and a possibility to > feed the journal to a pipe, socket or whatever. And of > course a client-side implementation that does something > useful with the journal stream. This might even be a good > SoC project. Now this interests me. Firstly, I thought that gjournal might only be responsible for the meta-data (but I'm happy to be wrong on this point). Secondly, is it a) sufficient and b) efficient to attempt to time-travel UFS with the gjournal log? _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[EMAIL PROTECTED]"