On Thu, Mar 3, 2022 at 11:29 AM Kim Scarborough wrote:
>
> Hello,
>
> I recently started using BackupPC, and I'm pretty happy with it. I don't
> understand, however, the point of full backups beyond the initial one. Once
> you've got everything, shouldn't incremental backups be sufficient going
> forward?
There's not as much difference as you might think. Because of the
de-duplication you don't store additional full copies. With rsync,
full backups just do a more thorough check for changes, actually
checking the files not just the directory timestamps but still only
transfer differences. With tar or samba, a full copy is sent but
then discarded if a matching file already exists. With tar/samba,
incrementals are based only on a timestamp and there are filesystem
operations that can preserve or set old timestamps so you'd miss
new/changed/moved files in an incremental but get them in a full.
--
Les Mikesell
lesmikes...@gmail.com
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