[CentOS] Deduplication data for CentOS?

[Rainer Traut]

Am 27.08.2012 18:04, schrieb Les Mikesell:
> On Mon, Aug 27, 2012 at 6:55 AM, Rainer Traut <tr.ml at gmx.de> wrote:
>>
>> is there any working solution for deduplication of data for centos?
>> We are trying to find a solution for our backup server which runs a bash
>> script invoking xdelta(3). But having this functionality in fs is much
>> more friendly...
>>
>
> Below forwarded on behalf of mroth:
>
> Les,
>
>     A favor, please?  Could you post this for me? Spamhouse is bouncing me
> again, this time because *they* have a bug (see below). I tried asking
> Karanbir, but I guess he's not online yet....
>
>     Thanks in advance.
>
> John R Pierce wrote:
>> On 08/27/12 4:55 AM, Rainer Traut wrote:
>>> is there any working solution for deduplication of data for centos? We
> are trying to find a solution for our backup server which runs a bash
> script invoking xdelta(3). But having this functionality in fs is much
> more friendly...
>>

> I've tried, twice, to suggest that a workaround that doesn't involve a
> new, and possibly experimental f/s would be to use rsync with hard links,
> which is what we do. There's no way we have enough disk space for 5 weeks
> of terabytes of data....

Rsync is of no use for us. We have mainly big Domino .nsf files which 
only change slightly. So rsync  would not be able to make many hardlinks. :)