[Duplicity-talk] Multilevel backup

[Håkan T Johansson]

Hello,

I am wondering if it is possible to do multilevel backup with duplicity?

(In order to avoid the long backup chains, without having to frequent full 
new backups.)

If not, I suppose what would be needed would be an option to base some 
incremental backups on not the latest incremental but an earlier one (or 
the full backup).

What I'm contemplating is to e.g. let the first backup every month be 
incremental based on the previous month's first backup.  And the same for 
weeks and days, with the first within each category either based on the 
previous such, or the latest of any category higher, if that is later.

Together with e.g. remove-older-than 14D, this could give a chain-tree 
like this (each backup based on the previous line, unless there is an 
arrow):

full
monthly
monthly
monthly
monthly
^ weekly
| weekly
| weekly
| weekly
| ^ daily
| | daily
| | daily
| | daily
| | daily
| | daily
| weekly
|   daily
|   daily
monthly
  ^ daily
  | daily
  | daily
  weekly
    daily
    daily
    daily

Best regards,
Håkan