On Tue, Oct 21, 2014 at 10:49:24AM +0100, Adam Bower wrote:
On Mon, Oct 20, 2014 at 11:44:12PM +0100, Chris Green wrote:
HOWEVER a decent backup facility integrates with cron as part of its design, obnam's documentation doesn't show how one can do daily/weekly/monthly/yearly backups.
Within a few minutes of reading the docs it was evidently clear how you would do this. The entire point is you choose your schedule, the software is being flexible. If you can't work out how to create your own schedule then that's *your* fault not the software.
I disagree:-
It isn't particularly obvious from the documentation how to schedule regular backups. Yes, we should know about cron but it would be nice to know how it's suggested to schedule things.
It's not at all obvious how to manage a tiered backup system with, say, 7 daily backups, 4 weekly backups, 12 monthly backups, etc. Other systems (such as rsnapshot) make this a fundamental part of the design.
IMHO it was easier for me to write a backup system (using rsync and a 70 line shell script) than to work through the documentation for obnam and create the configuration file and cron schedules for that.
That last point was my original one - the complexity of most backup systems seems to me to be such that it's often much simpler (and you get *exactly* what you want) to D-I-Y. This isn't a particular criticism of obnam, it was my starting point when I asked if the algorithm I posted some days ago looked correct.
... anyway, this is getting a bit argumentative, not really what I was intending. Don't take me too seriously. :-)