On 10/26/14 06:52, jerry wrote:
> On 10/25/2014 12:21, Scott Robison wrote:
>> Is there a means to determine what is "new" between two "full"
>> archives? I do a full archive of an entire partition each day, and am
>> a little surprised by how much new data exists. I would like to "diff"
>
> *** Do you have the "noatime" option on your filesystem? Without that, the
> filesystem will track, for each file, not only when it is modified, but
> when it is *read*. So every read anywhere produces a write. This is
> for Linux, I don't know if it holds for other OS's.
Tarsnap defaults to not storing file access times, so this shouldn't be
the issue (unless Scott is using the --store-atime option).