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Re: [rdiff-backup-users] rdiff-backup file consistency

From: Nicolas Jungers
Subject: Re: [rdiff-backup-users] rdiff-backup file consistency
Date: Sat, 09 Jun 2012 07:18:28 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:12.0) Gecko/20120430 Thunderbird/12.0.1

Hi Sorvath,

I use rdiff-backup with TB sized data stores, some churning 10's of GB a day (I haven't so far experienced any problem), but if I had to shop for a new backup system I'd investigate obnam. Which I'll probably do anyway.


On 06/08/2012 10:02 PM, shorvath wrote:
Hi and thanks for the replies.

Florian, you mention you use rdiff-backup (for max 20G) and rsync for larger.
Is it not recommended to use rdiff-backup on large backups?  Mine are several 
Tb's with possible gb's daily increments.
Would it be recommend to stick to rsync?
How about backuppc?
What are your thoughts/comments/suggestions regarding that?

I backup several servers to a local backup server (daily,weekly, monthly) and 
then sync that offsite.
Currently each local backup is checksummed, xfered offsite and checksummed 
We have a set of scripts that rsyncs, rotates, reports and checksums but 
unfortunately they are very inefficient and are just not up to the job.
I have the choice of rewriting them from scratch or use something that's 
already been written (rsnapshot, rdiff-backup, backuppc)
All are much more efficient than anything I could come up with so why reinvent 
the wheel?
I just need to decide on one that does, at the very least, what we're currently 
doing (albeit not very well)

As for ram errors...All our servers have ecc ram.
For bit errors... I'm VERY tempted to take the plunge into the zfs on linux 
project but despite the many good reports on stability, as this is a production 
service, I'm nervous.

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