Paul Fox wrote:
> Why are full backups needed at all with BackupPC?
>
> According to documentation, "BackupPC's CGI interface ``fills-in''
> incremental backups based on the last full backup, giving every backup a
> ``full'' appearance."
>
> So, in theory, it should be enough to make just one full, initial
> backup, and then only incremental backups.
>
> Or do I miss something here?
one reason (there may be others) is that incrementals don't account
for the removal of files. if a full contains a file that is later
removed, it will always appear in that "filled" view, even after
the file is gone from your system. so full backups are necessary
to reestablish a true image of your current contents.
(this is with tar -- rsync incrementals may actually remove deleted
files. i don't use rsync.)
So with rsync it shouldn't be an issue, right? Could anyone comment on that?
Anyway, will several full backups use only one hardlinked file in the
pool, or do full backups use separate, non-hardlinked files?
--
Tomasz Chmielewski
http://wpkg.org
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