Date: Thu, 30 Oct 2008 10:25:56 +0200 From: Nikolay Denev <ndenev@gmail.com> To: Freddie Cash <fjwcash@gmail.com> Cc: freebsd-stable@freebsd.org Subject: Re: Anyone used rsync scriptology for incremental backup? Message-ID: <95550BEC-DB92-4C68-8409-3DFF7C0B86C0@gmail.com> In-Reply-To: <b269bc570810292200q37939f21tf5918014ade777b2@mail.gmail.com> References: <20081029231926.GA35188@0lsen.net> <490907AC.5070303@freebsd.org> <490912CC.6000406@modulus.org> <b269bc570810292200q37939f21tf5918014ade777b2@mail.gmail.com>
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On 30 Oct, 2008, at 07:00 , Freddie Cash wrote: > On Thu, Oct 30, 2008 at 1:50 AM, Andrew Snow <andrew@modulus.org> > wrote: >> In this way, each day we generate a batch file that lets us step >> back one >> day. The diffs themselves, compressed with gzip, and extremely space >> efficient. We can step back potentially hundreds of days, though >> it seems >> to throw errors sometimes when backing up Windows boxes, which I >> haven't >> tracked down yet. >> >> But to be honest, soon you can save yourself a lot of hassle by >> simply using >> ZFS and taking snapshots. It'll be faster, and with compression >> very space >> efficient. > > That's exactly what we do, use ZFS and RSync. We have a ZFS > /storage/backup filesystem, with directories for each remote site, and > sub-directories for each server to be backed up. > > Each night we snapshot the directory, then run rsync to backup each > server. Snapshots are named with the current date. For 80 FreeBSD > and Linux servers, we average 10 GB of changed data a night. > > No muss, no fuss. We've used it to restore entire servers (boot off > Knoppix/Frenzy CD, format partitions, rsync back), individual files > (no mounting required, just cd into the .zfs/snapshot/snapshotname > directory and scp the file), and even once to restore the permissions > on a pair of servers where a clueless admin "chmod -R user /home" and > "chmod -R 777 /home". > > Our backup script is pretty much just a double-for loop that scans a > set of site-name directories for server config files, and runs rsync > in parallel (1 per remote site). > > We we looking into using variations on rsnapshot, custom > squashfs/hardlink stuff, and other solutions, but once we started > using ZFS, we stopped looking down those roads. We were able to do in > 3 days of testing and scripting what we hadn't been able to do in > almost a month of research and testing. > > -- > Freddie Cash > fjwcash@gmail.com > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org > " Hi, Do you experience problems with the snapshots? Last time I tried something similiar for backups the bachine began to spit errors after a few days of snapshots. http://lists.freebsd.org/pipermail/freebsd-fs/2008-February/004413.html -- Regards, Nikolay Denev
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