Am 09.03.2010 14:20 schrieb Dave Howorth:
> You apparently don't know what a hardlink is.

(...)

> There's no difference
> between the 'original' file and a 'hardlink' to it.

/Apparently/ I am not a native speaker, who tried to summarize something
up in simple words.

Anyway, a hard link isn't a /file/ either. It is a directory entry,
required to access the file's actual content. In a file system at least
one hardlink exists for any file on the disc, unless the file was
"deleted" which means that the last hard link was also removed.

On the first backup, dirvish copies the file, and the initial hard link
is created. When I say later backups are "linked" against older ones I
mean the process of creating additional hard links for all files already
existing in in the older backup. By creating additional hard links,
dirvish prevents these files from beeing lost.

By the way: This makes me worry. Dirvish does not automatically create
"original" backups on a regular basis. So if you shred a file or lose it
to a physical disc error, all those additional hardlinks won't help.

I think you'd have to re-init the vault from time to time or maybe
create a second (and a third...) vault with the same config to double
the files. Or backup the backups, or create filesystem-mirrors, or...?

n
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