Re: [9fans] FS to skip/put-together duplicate files

["YAMANASHI Takeshi" <9.nashi@gmail.com>]

how about mounting venti-backed fossil files from a linux as an AoE drives?
vblade on sources exports the plan 9 file and the aoe driver for linux
does the mounting.

Venti would be compressing and condensing duplicated blocks to a single block.
I'm not sure if same files are boundaried in same manner to each other though.


On 8/10/07, erik quanstrom <quanstro@quanstro.net> wrote:
> > I'm host a lot of web applications which share 99% of their code.
> > Disk space is not the issue, but bandwidth on remote backup.
> > So my idea is to let an filesystem automatically link together
> > equal files in the storage, but present them as separate ones.
> > Once an file gets changed, it will be unlinked/copied automatically.
> >
> > Is there already such an filesystem ?
>
> no.
>
> however there are updatedb/compactdb which can be used to
> create a list of changed files and replica/applylog which can
> be used to apply them.
>
> i used these tools to copy history from one kenfs to a new one.
> i actually used cphist (/n/sources/patch/saved/cphist) and not
> applylog.
>
> you could also use the log on the generating machine to build
> a mkfs archive and compress that, ftp it and apply it on the
> other end.
>
> - erik
>


-- 
YAMANASHI Takeshi