Re: dar & file access times

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John Minson wrote:
| does dar use file access times for any backup decisions ?

backup decision (during incremental backup of course) is base on mtime
(last modification time), file ownership (unless -O option is given to
dar), file size, but not on atime or ctime date.

| I have noatime turned on for all the file systems and I get files
backed up that
| haven't changed in months.

you can use the -d option with your reference backup to see what is the
reson that lead dar to save again theses files, with for example:

~   dar -d /path/to/previous/backup -R / -g file/that/has/not/changed

you can also remove the -g option to have a complete comparison.

Cheers,
Denis.
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