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). Colin Percival
