nssbackup-team team mailing list archive

[Anton <feenstra@xxxxxxxxx>]

On 03/01/11 15:18, Jean-Peer Lorenz wrote:
>> This option is included in version 0.10.5
> I don't think that the general option to purge (as currently included in sbackup) meets the described feature request. Therefore, I reopen this bug. Remarks and patches are welcome.

Ideally, to free up necessary diskspace in combination with logarithmic 
purge, it would be good if the purge could be incrementally 'thinned'.
The default is:
* keep all from yesterday
* keep one per day from last week
* keep one per week from last month
* keep one per month from last year
* keep one per quarter from 2nd last year
* keep one per year further into past

(Especially the last one, while growing slowly, will keep growing
forever!)

But, when tight on diskspace, one could 'thin' this to something like:
* keep last one from yesterday
* keep one per two days from last week
* keep one per two weeks from last two months
* keep one per two months from last year
* keep one per half year from 2nd last year
* keep one per 2^n years for the nth year into past (true logarithmic!)

Alternate to steering on free space, one might want to set a limit on 
total diskspace allocated to backups. This might even work when disk 
free cannot be determined (as with ftp).


Anton.

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https://bugs.launchpad.net/bugs/294019

Title:
  Purge to specified free disk space or backup size