On Mon, 06 Oct 2008 18:09:06 +0300 "Vlad GALU" <[EMAIL PROTECTED]> wrote: > On Mon, Oct 6, 2008 at 5:33 PM, Evren Yurtesen <[EMAIL PROTECTED]> wrote: > > Bob Bishop wrote: > > > >>> Does anybody have free time and skills to give a hand? Please see: > >>> http://forum.r1soft.com/showpost.php?p=3414&postcount=9 > >> > >> Should be possible to do this with a geom(4) class? > >> > > > > I am not saying it is impossible. They just need somebody to put them to > > right track I guess. I personally cant do that. It would be nice if somebod > y > > who has knowledge in this area contacts r1soft. At the very least r1soft > > seems to be willing to communicate on this issue. > > > > Continuous backups as well as bare-metal-restore seem to be a key feature > > for many hosters. FreeBSD is loosing users because of this issue. > > gmirror+ggate come to mind as a nifty solution ...
My guess is these guys do something simpler like keep keep track of changed blocks since the last backup and periodically dump those blocks to a server. This is good enough for backups (but not mirroring) and it has low memory overhead (1 or 2 bits per block), lower network overhead than remote mirroring (you send a block at most once every sync interval), and a tiny loss of performance (over no backups). May be someone ought to do a garchive device! _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[EMAIL PROTECTED]"
