[CentOS] Backup of large filesystems >500GB

Tue May 28 17:43:12 UTC 2013
Ljubomir Ljubojevic <centos at plnet.rs>

On 05/27/2013 11:06 PM, Mark LaPierre wrote:
> On 05/27/2013 02:13 PM, Mike Watson wrote:
>> I've a small system that I use to support a number of churches. I
>> provide web and email for them. My current server is running CentOS 6.3
>> with paired 1TB drives in a RAID1 configuration. It works well. One
>> filesystem is very large, >500GB, and contains numerous large files:
>> SQL, docs, church libraries in ebook and digital form, plus stored
>> videos of church services.
>> My problem is that I've found no means of backing up that file system.
>> Dump and tar both error out as exceeding the maximum size. Neither will
>> backup just the video directory (the largest) even with compression.
>> Backup will be to an external (USB) removable HD.
>> Can any suggest a prog or a method to back up this filesystem?
>> mw
> I use rsync to make a daily back up of my data on a second drive that is
> not normally mounted except when the backup is running.  The drive is
> inside the same box so this backup is still subject to loss if the box
> is stolen or destroyed.  I really should be backing up to an off site
> location.
> If you have a fire, flood, or other general disaster your local backup
> on an external drive isn't going to buy you anything unless you store
> the external drive off site.

You can place that HDD in a rack (eSATA?) and add another that is kept 
off-site, and replace/swap them every week?

Full off-site backup would require another box off-site with 
internet/wireless link for backups. Since you use rsync, data transfer 
should be fairly minimal.

Ljubomir Ljubojevic
(Love is in the Air)
PL Computers
Serbia, Europe

StarOS, Mikrotik and CentOS/RHEL/Linux consultant