RE: [rdiff-backup-users] is there a way to disable regression?

[denis cardon]

Hi Peter,

thanks for your input. Knowing of active rdiff setup
on low bandwidth links make me eager to keep on
testing :-)

As a matter of fact, in normal condition, the backup
runs okay. However, if one day users do create to much
data changes (during a one month testing period, it
just occured once), then I'm stuck...

As for the SSH vs VPN stuff, I'll take a look into it.

By the way, is there any other way to stop a running
rdiff-backup except unpluging the cable or kill-9-ing
the process?

In the mean time, I'll try the 0.10.0 rdiff-backup
version like David suggested in an earlier mail (like
David said, regression was still not a feature at that
time :-)

Thanks for the quick reply.

Cheers,

Denis
 
--- Peter Howell <address@hidden> wrote:
> Hi
> 
> Does your vpn compress the data? I use very
> sucessfully a remote backup but
> over ssh not our vpn which seems to be prone to
> problems on the line. SSH
> has very good compression on most files. 
> 
> We backup about 30Gb in 110000 files. We usually
> change about 30000 files a
> day which is equivalent to 6Gb of files. The actual
> data changed is about
> 300Mb and the backup usually takes no more than
> about 5 hours over a 150kbit
> link. rdiff is a very impressive package in my view!
> It only overruns when
> some one copies gigabytes of data onto the servers
> :-(
> 
> If I want to stop the backup I pull the network plug
> and it terminates
> cleanly rather than kill the processes. 
> 
> Are you using Linux or Windows?
> 
> Peter
> 
> -----Original Message-----
> From: denis cardon [mailto:address@hidden
> Sent: 08 January 2004 16:28
> To: address@hidden
> Subject: [rdiff-backup-users] is there a way to
> disable regression?
> 
> 
> Hi,
> 
> First I'll start by the usual season greetings : I
> wish you all a happy new year ! And also wanted to
> congratulate the developpers for this great piece of
> work. Keep on the good job ! :-)
> 
> I would need to know if there is a way to disable
> regression if the backup is stopped and then
> restarted
> sometime later. Here is the long story : 
> 
> I've been testing rdiff as a daily backup utility
> for
> already a few month. It's been working quite well on
> a
> local area network with high bandwidth and permanent
> connection.
> 
> However my testing hasn't been so good on VPN
> connection. I'm trying to set up rdiff to back up a
> hard drive on a remote location (the bottle neck is
> the remote 128kbps upward ADSL link ==60MB/hour +
> one
> daily ADSL connection cut by the provider at
> 01:00AM).
> The backup has to be carried out during the night.
> 
> In normal situation, there is only a few dozen of
> megs
> of data change on the file-server, so a few hours is
> enough for backing up.
> 
> However, since the internet connection is vital for
> running the business (vpn stuff et al.), the backup
> shouldn't be lasting after 8:00AM. So if there has
> been a lot more than 500MB of data change on the
> server I need to kill the backup process.
> 
> It is not a huge problem if the file backup is late
> one day. However, since rdiff does regression, if
> one
> day backup can't get finished, it will never get
> finished again (always more data to backup since
> last
> snapshot).
> 
> So my question is : is there a way to disable
> regression? If not, is there a fundamental flaw in
> having a partial snapshot of the file-server (I
> backup
> only documents, no /etc/, no /usr/, no /var/).
> 
> It looks to me that this issue shoud be quite
> common,
> but since I have not found anything on the mailing
> list archive, I am wondering if I am not just not
> doing something wrong...
> 
> Cheers,
> 
> Denis Cardon
> 
> =====
> =========================
> |Denis Cardon, Tranquil I.T. Systems 
> |10 rue du Docteur Bouchard, 49400 Saumur
> |Tel: +33(0)2.41.67.56.99
> |Web: http://www.tranquil-it-systems.fr
> =========================
> 
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> _______________________________________________
> rdiff-backup-users mailing list at
> address@hidden
>
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> Wiki URL:
>
http://rdiff-backup.solutionsfirst.com.au/index.php/RdiffBackupWiki
> 


=====
=========================
|Denis Cardon, Tranquil I.T. Systems 
|10 rue du Docteur Bouchard, 49400 Saumur
|Tel: +33(0)2.41.67.56.99
|Web: http://www.tranquil-it-systems.fr
=========================

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