Oh, and while I'm thinking of it, what are your thoughts on using ZFS' dedup feature on a BackupPC pool? I'm aware that a goodly amount of RAM would be required for that feature. But since BackupPC's dedup feature is file-based, and ZFS' dedup feature is block-based, even more space could be saved; particularly when you're backing up things like .pst files, where a large majority of the file is the same, save a few bytes/KB/MB. Such files are flagged by BackupPC as different.
Thanks, --Mark -----Original Message----- From: Lars Tobias Skjong-Børsting [mailto:li...@snota.no] Sent: Saturday, March 02, 2013 2:28 PM To: backuppc-users@lists.sourceforge.net Subject: Re: [BackupPC-users] BackupPC Pool synchronization? Hi Mark, On 3/1/13 10:37 PM, Mark Campbell wrote: > Question, taking your model here, and applying it to my situation, how > well would this work: > > BackupPC server, with a RAID1 zpool, with the third member being my > external fireproof drive. Rather than the rotation you described, > just leave it as is as it does its daily routine. Then, should the > day come where I need to grab the drive and go, plugging the drive > into a system with ZFSonLinux & BackupPC installed, could I mount this > drive by itself? Yes, this is no different, really. It would work very well. Just keep it in sync, and all should be fine. You can just pull out any drive at will, without causing any filesystem corruption. The fireproof drive can be inserted in a different computer with ZFS support and you can run "zpool import" and then you can mount the filesystem. You shouldn't use USB for your external drive, though. E-SATA, Firewire or Thunnderbolt is fine. > I really like your idea of zfs send/receive for the remote copy. Do > you have any tips/pointers/docs on the best way to run it in this > scenario? I don't mean to say RTFM, but the top results of a Google search are as good a starting point as any: https://www.google.com/search?q=zfs+send+receive+backup I think this article is quite good: http://cuddletech.com/blog/pivot/entry.php?id=984 If you have any further questions, don't hesitate to ask. :) -- Best regards, Lars Tobias ------------------------------------------------------------------------------ Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_feb _______________________________________________ BackupPC-users mailing list BackupPC-users@lists.sourceforge.net List: https://lists.sourceforge.net/lists/listinfo/backuppc-users Wiki: http://backuppc.wiki.sourceforge.net Project: http://backuppc.sourceforge.net/ ------------------------------------------------------------------------------ Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_feb _______________________________________________ BackupPC-users mailing list BackupPC-users@lists.sourceforge.net List: https://lists.sourceforge.net/lists/listinfo/backuppc-users Wiki: http://backuppc.wiki.sourceforge.net Project: http://backuppc.sourceforge.net/