On Mon, Feb 13, 2012 at 11:13 AM, Fred Warren <fred.warren AT gmail DOT com> wrote:
I would like to run backup-pc on site and keep a duplicate copy offisite. So I want 2 backup-pc servers. One onsite and one offsite. With the offsite copy not running, but the data being synced with the onsite copy. If there is some kind of failure with the onsite copy of backup-pc. I could then start the offsite-copy and restore files from there.
What I have discovered so far is that even if I stop the backupc-service on the onsite server, I cant keep the offsite server updated via rsync. the first time I rsync it works fine. But then the next time I do an update, with all new data, deuplication, hand links created and changed on the onsite server, the next rsync is a total disaster.
You need to use the -H option to rsync to make it track the hard links. The usual problem is that there is no efficient way to do this and it won't complete in a reasonable amount of time for backuppc to be stopped.
Are there some magic sync settings that will allow me to keep a backup of the backup-pc data by rsyncing it to another system?
It will depend on the size of your archive whether it is even possible to make it work. If you have enough of a time window to complete two backups, it is really better to let the offsite copy run independently, backing up the same targets directly. If you use rsync, you won't transfer a lot more data after the initial run. You may want a VPN connection to the network rather than allowing all the targets to accept outside connections, and to skew the blackout times so both systems won't hit the same target at once.
-- Les Mikesell lesmikesell AT gmail DOT com
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