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[edso <question654413@xxxxxxxxxxxxxxxxxxxxx>]

Question #654413 on Duplicity changed:
https://answers.launchpad.net/duplicity/+question/654413

    Status: Open => Answered

edso proposed the following answer:
On 31.07.2017 22:03, Frank Bicknell wrote:
> New question #654413 on Duplicity:
> https://answers.launchpad.net/duplicity/+question/654413
> 
> Some files, like virtual machine images, are very large and take a really long time (many hours) to back up incrementally when the file has changed since the last backup.
> 
> Would it be possible to somehow flag certain files as "full backup only" instead of having duplicity try to wedge in the changes to an incremental backup?
> 
> The rest of the backup would still be incremental, but flagged files would just get a full copy every time.
> 
> Seems to me this would apply in some circumstances.
> 

hey Frank,

the idea if incrementals itself is meant to speed up the backup
(duplicity's librsync eg. uses the rolling checksum
https://rsync.samba.org/tech_report/node3.html).

can you tell why you assume that backing up fully would be faster? did
you do tests?

..ede/duply.net

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