Pieter Wuille wrote: > On Sat, Jun 27, 2009 at 11:05:23AM +0200, Tino Schwarze wrote: >> Hi Mark, >>
Hi Mark, Tino & Pieter, >> On Fri, Jun 26, 2009 at 08:28:32AM -0700, Mark Phillips wrote: >>> I am looking for inexpensive off-site storage that is compatible with >>> backuppc. >> In my opinion, off-site storage and backup don't go together. After all, >> your backups contain all of your important (and possibly secret) data. I >> wouldn't want to store these on some online-service. > > Therefore you should always have offsite backups encrypted using a key that > is not stored on the offsite backup. Ideally, the offsite server (assuming > you don't control the physical access to it), shouldn't even ever see the > unencrypted data. > My personal opinion is, backup is for restoring files and has history, but offsite storage is for when the building burns down. Some people would probably call that disaster recovery. > You can do this at either filesystem-level or blockdevice-level. The first one > is (in the case of backuppc, because of massive hardlinking and millions of > small files), very cpu and ram intensive, and more difficult to encrypt. > Using a blockdevice-approach is a lot less stressing for you system, but > probably a serious waste of bandwidth unless you have a way to send > incrementals updates. > I agree on the encryption part and I always though http://duplicity.nongnu.org/ looks pretty cool. My guess is it doesn't do hardlinks, I haven't checked, but maybe you don't really need history (what the hardlinks are for) when disaster strikes ? That's obviously up to you. >>> Is anyone using backuppc to backup files to Amazon S3? I have googled for >>> some articles on this topic, and all I have found are old ones. It seems >>> 1. S3 does not "allow" hard links and use of rsync. There is a s3sync >>> option, but I haven't looked a it. >>> 2. Using an EC2 front end running backuppc might work, and then storing to >>> s3. Haven't found any backuppc articles about this. >> I'm not familiar with S3 or EC2. Currently, BackupPC requires direct >> access to a posix file system with hardlink support. And it does quite >> stress the file system! > > Neither am i familiar with S3 or EC2, and have no idea what kind of ways > there are for synchronisation, but maybe you can synchronize the backup > volume (blockdevice level) or backup filesystem with something on S3/EC2. > I would advise against using backuppc to do offsite-backups of a backuppc > pool. It will require many resources and increases the difficulty for > doing a restore. > I think duplicity does do so, but again I haven't checked. But anyway, the most important thing you should do with any tooling like this, is a restore test. And have a working plan. ------------------------------------------------------------------------------ _______________________________________________ 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/
