Re: Need help with btrfs.

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On Thu, Mar 4, 2021 at 9:50 AM Matthew Miller <mattdm@xxxxxxxxxxxxxxxxx> wrote:
>
> On Wed, Mar 03, 2021 at 05:40:19PM -0800, Samuel Sieb wrote:
> > There are a few different types of full-disk backup, but if it's
> > file-based and the atimes are modified, that's the intent of the
> > backup process.  The atimes are used to determine which files to
> > backup.  A scrub is not a backup and shouldn't modify the atimes.
>
> I can't imagine why you would use atime instead of ctime for backups.
>

Also, this seems really easy to game. Why not maintain a checksum
record instead? That makes it possible to maintain more efficient
deltas. Using atimes/mtimes is just asking for trouble.



-- 
真実はいつも一つ!/ Always, there's only one truth!
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