On 01.07.2014 00:28, deoren wrote:
I'm still pretty new to running a mail server, but one thing I've come
to appreciate over the years is a good backup strategy. Since I have
always run my own servers for practice and for personal use I don't
have access to Enterprise backup solutions. Because of that I usually
just fall back to scripts and tarballs and offload the content on a
regular basis.
Right now I'm using LVM snapshots + tarballs for daily backups, but
I'd like to get better coverage for incremental changes that occur
throughout the day. The size of existing content is low, but (small)
changes are frequent.
I went with Maildir format because based on my reading it is referred
to as time tested and corruption resistant. Because individual emails
are stored as separate files this also leads me to believe that a
version control system (Git, SVN) would allow for easy point in time
restores.
I'm also going to research the GNU tar utility's support for
incremental archives as that sounds promising.
Hello Deoren,
I can recommend dirvish (http://www.dirvish.org/).
Supports incremental backups with aging strategy and hardlinks and very
efficient storage. Works for years for me. In the background rsync is
used for syncing the backups but with a high level interface.
Ciao,
Gerhard
