Sorry for the delay, we are using amanda for backuppc archiving purpose. Main difficulty relies on the kind of FS used for pooling.
My own experience goes against using : Soft 5T pool for 25T hardlinked data with a lot of small files and more than 20% of free FS space ++ defragmented All backups are done over LVM(No RAID) snapshots Hard 3Ware RAID5 / 750Go SATA / 4 Opteron / 16 Go RAM hardware Tar tends to be "too" slow. It produces 'killer' interruptions for backuppc rsync jobs. All CPUs are going IO/waiting) or "iostat await" is going over 500. I was then only able to considere full device binary dump, which are not handed by amanda or some dump/restore process. dump/restore over LVM ext3 were not tested. ext3 looks too slow for my backuppc pool and I wasn't secure about harlinks. I choose XFSdump after some optimization : DMAPI on SGI patched kernel and mount optimization. Then I was under stress for amanda xfsrestore : Time for backup got limits from its bandwith for housekeeping data r/w ! Once I choose to move them in tmpfs mounts (size 8Go !) and to not allow swapping, I got good perf : Average looks give me tar is done 1mb/s on xfs optimized, ext3 dump at 1~2mb/s xfsdump at 1~2mb/s without dmapi xfsdump at 20~25mb/s with dmapi My backups are done on LTO3. For amanda I choose to not use disk split buffer and I do it in RAM on 1Go chunks. Well, it's now working in 2-3 days but restoring is .... 4 days but I did not try to optmize that. Sylvain PS : fstab extract : tmpfs on /tmp/amanda type tmpfs (rw,size=8g) /dev/mapper/vg_array0-BACKUPPC--SNAP on /srv-snap type xfs (ro,nobarrier,largeio,swalloc,nouuid,sunit=128,swidth=1152,dmapi,mtpt=/srv-snap) Some read about my NAS install with backuppc and amanda : http://www.isc.cnrs.fr/informatique/public_notice/Melian On Mon, 2007-11-26 at 13:28 -0800, Paddy Sreenivasan wrote: > I'm a developer in Amanda (http://amanda.zmanda.com) project. Is anyone > using Amanda and Backuppc together? > > I'm interested in integrating Backuppc with Amanda. Amanda will be > the media manager (support for tapes and other media) consolidator of data > from a group of BackupPC clients. Amanda's application api > (http://wiki.zmanda.com/index.php/Application_API) can be used for > integration. > Lots of details have to be worked out. > > If anyone is interested in developing such a solution, please send me an email > (paddy at zmanda dot com). Any suggestions on what features would be > useful in a integrated solution? > > Thanks, > Paddy > > ------------------------------------------------------------------------- > This SF.net email is sponsored by: Microsoft > Defy all challenges. Microsoft(R) Visual Studio 2005. > http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ > _______________________________________________ > BackupPC-users mailing list > [email protected] > List: https://lists.sourceforge.net/lists/listinfo/backuppc-users > Wiki: http://backuppc.wiki.sourceforge.net > Project: http://backuppc.sourceforge.net/ > -- ************************************************************** Sylvain MAURIN - Admin.Sys. Institut des Sciences Cognitives CNRS-Universite Claude Bernard Lyon 1 67, boulevard Pinel. 69675 BRON cedex Tel:+33 437911214 Cel:+33 612399929 Mail: [EMAIL PROTECTED] ************************************************************** Cert. CNRS-Plus S/N: 0C-31 - http://igc.services.cnrs.fr/ SHA-1 fingerprint: "7A:C7:4D:DE:29:C9:B3:FA:B8:81:5C:6B:80:8C:32:95:72:7A:4C:2B" MD5 fingerprint: "EA:B5:90:DC:72:3D:BB:39:FC:36:F5:B3:6D:96:BE:1D" **************************************************************
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