On Mon, 21 Oct 2013 14:06:06 -0400 Matthew Miller <mattdm@xxxxxxxxxxxxxxxxx> wrote: > On Mon, Oct 21, 2013 at 11:23:19AM -0600, Kevin Fenzi wrote: > > Review/feedback welcome. Are there any unclear parts? Anything not > > mentioned that would be good to know about backups? > > What about retention? How long are the backups kept? Currently forever. Sometime down the road we might start pruning them. We are currently using about 2TB of a 25TB volume and it's growing pretty slowly. https://admin.fedoraproject.org/collectd/bin/graph.cgi?hostname=backup03;plugin=df;type=df;type_instance=fedora_backups;begin=-31622400 I'll add a note. > On my own systems, I run rdiff-backup with > `--exclude-if-present .NOBACKUP`. This makes it skip any directories > containing that file, and is useful for subdirs with a lot of churn. > For example, /etc/selinux/targeted -- but perhaps most useful for > people to put in home directories where they may be dropping large > temporary files that are actually okay to not be backed up. Good idea, we could add this if there's call for it. > Also, you probably already know this, but rdiff-backup does not have > any special handling for moved files -- they are treated as deleted > and created anew. This can mean that simply renaming something a lot > can use up a lot of space (unless of course the underlying filesystem > is deduplicated, of course). Yep. The netapp volume we are using is in fact deduplicated, also we aren't backing up /var/log/ or the like on most machines. (we are backing up logs from log02 which gets a copy of them, but it's setup to use YYYY/MM/DD/ directories. kevin
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