Re: [Duplicity-talk] reduce size of cache

[edgar . soldin]

On 28.07.2022 10:48, Hamish Moffatt via Duplicity-talk wrote:
> I have full and incremental backups of a large amount of data going back 4 
> years, for which the duplicity cache is consuming 139Gb(!) on one machine alone.
>
> Is there a current and supported way to remove old signatures from the cache 
> such that they can be restored in the future if required? I don't mind how 
> manual this process is.
>
> I realize this has been asked in the past and the previous reluctant 
> recommendation was to use cleanup --extra-clean, but that option was removed in 
> 2020.
>
> If so, what is the process for removing the old signatures, and what is the 
> process for getting them back from remote if required?

hey Hamish,

as `--extra-clean` tended to break backups it was no safe option.

if you don't mind manual intervention i'd suggest changing the target(-folder) 
by interval, say every year or so. regular full backups are recommended anyway 
to minimize chain corruption, so that seems like a feasible workaround.

after switching the target you can delete the previous archive-dir, as it is 
only needed for incrementals or restore and will be recreated if needed. using 
option `-name` might ease to find the correct archive-dir per target(-folder).

good luck.. ede