[CentOS] Best backup software for linux

dnk mailinglists at backbonetechnology.com
Tue Oct 24 17:02:30 UTC 2006

Mark Schoonover wrote:
> If you have 20GB of data, using tapes is OK. In my case, I have about 3TB of
> data that needs to be backed up, and taken offsite. So, the only real option
> is rsync going out to disks. We started out with using one of the recipes
> from the Linux Server Hacks book, #38, #41 & #42 to essentially build up a
> poor man's SAN. Using CentOS installed on systems with 3Ware cards, I have 2
> onsite 4 TB NAS. The first one is for network use, the second is for hourly,
> daily and weekly snapshots of the main NAS. There's a third 4TB NAS that's
> located offsite in a colo facility that's fed with dual T1s. We can have
> anywhere from 2-5 GB of data change every day. We're a company of about 50
> employees, and we do legal work - so nothing can be thrown away.
> This system runs 7 days a week, and it's fully automated with email alerts,
> etc. The big benefit is restores. We've had our graphics dept accidently
> delete 250GB of data, and it was trivial to scp the missing data back to the
> main NAS. It all happened at network speeds, over a GB switch. All the NASes
> have dual NICS in them, and the second NICS are connected to their own
> private GB switch - hence the poor man's SAN. When hourly snapshots run, all
> the data that changes has a seperate GB network to move the data, leaving
> the office network alone. No user can tell that backups are happening
> throughout the day.
> Maybe this is something I should write up in more detail. The entire system
> runs on just a couple of shell scripts, rsync, and Perl program to mail out
> logs....
> Mark
If you do by chance write that up, I would be interested in seeing it.


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