CentOS - Oct 2009 - Backing up a centos serveR? how to ? Newbie question..

Hi all,


excuse my newbie question but how can i backup my centos server?

i have a dozzen of virtual hosts over it as well as substantial database
entries..

i've backed up the following directories using rsync:

workspace/
/etc/httpd/
/etc/apache-tomcat-6.0.20/
/usr/lib/mysql/
/var/lib/mysql


though i'm still not at ease with this, so i decided to do a some sort of
clone or something to move this server to a VMWARE which i will turn on when
needed (if main server failed)

any advice on how to do so ?

i've looked around and tried using "clonezilla" though that
didn't work with me, i guess i mustve done something wrong... each time i
try to boot from the cloned image of the local disk (which in turn cloned to the
VM's local disk) it gives an error bout root records...

so any other way ? 


any sort of help is greatly appreciated :) 


thanks and best regards,

Roland
 
 		 	   		  
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From: RoLaNd RoLaNd <r_o_l_a_n_d at hotmail.com>
>excuse my newbie question but how can i backup my centos server?
>i have a dozzen of virtual hosts over it as well as substantial database
entries..
>i've backed up the following directories using rsync:
>workspace/
>/etc/httpd/
>/etc/apache-tomcat-6.0.20/
>/usr/lib/mysql/
>/var/lib/mysql
For mysql, I would use mysqldump instead of rsyncing the whole mysql
directories...
Something like:
  mysqldump <DATABASE> | gzip -9 > <DATABASE>-<DATE>.gz

JD

Hi Roland
On Mon, Oct 19, 2009 at 9:15 AM, RoLaNd RoLaNd <r_o_l_a_n_d at
hotmail.com> wrote:
> excuse my newbie question but how can i backup my centos server?
We use Mondo Rescue (www.mondorescue.org/) and it works perfectly
providing bare-iron recovery. We tend to use tape drives to back up
our application and database (Oracle) and DVDs created by Mondo for
everything else. Works perfectly with RHEL and CentOS.
Recently I had some issues with recovering latest Dell servers like
R900 or R710 series but after a bit of fiddling and extra commands to
recognise external enclosures, they always ended up being recovered
w/o any issues.

-- 
Hakan (m1fcj) - http://www.hititgunesi.org

RoLaNd RoLaNd wrote:
> Hi all,
> 
> 
> excuse my newbie question but how can i backup my centos server?
> 
> i have a dozzen of virtual hosts over it as well as substantial database 
> entries..
> 
> i've backed up the following directories using rsync:
> 
> workspace/
> /etc/httpd/
> /etc/apache-tomcat-6.0.20/
> /usr/lib/mysql/
> /var/lib/mysql
> 
> 
> though i'm still not at ease with this, so i decided to do a some sort 
> of clone or something to move this server to a VMWARE which i will turn 
> on when needed (if main server failed)
> 
> any advice on how to do so ?
> 
> i've looked around and tried using "clonezilla" though that
didn't work
> with me, i guess i mustve done something wrong... each time i try to 
> boot from the cloned image of the local disk (which in turn cloned to 
> the VM's local disk) it gives an error bout root records...
Can you be more specific about the error message?  This should be like any other
case of moving linux to different hardware. If the disk drivers don't match
what
is installed you have to rebuild the initrd with correct drivers.  Or, the 
quick-fix is to boot from a live CD and copy the contents of /boot over from a 
machine (or VM) where the same version was installed on the same real or virtual
hardware.
> so any other way ?
If you are going to VMware, you can probably use the vmware converter program 
that you can download for free.  It will convert a running machine to a vmware 
image file or from one version of vmware to another, including the ESXi server 
where you don't have normal access to the filesystem.

-- 
   Les Mikesell
    lesmikesell at gmail.com

A really good place to find out info about the various raid levels and
what their good for is here:
http://www.acnc.com/04_01_00.html

But please don't confuse raid with something like?Bacula :)

Regards
Per

At Monday, 19-10-2009 on 16:28 "Bobby"  wrote:

On Monday 19 October 2009 08:56:48 RedShift wrote:
> David Suhendrik wrote:
> > may be rsync help You
> > Or u can try raid 0[mirrorig]
> > for replicate failover triying drbd and heartbeat but I've tested
and
> > unsuccessfull on my zimbra machines
> 
> RAID IS NOT A BACKUP.
> 
> I repeat.
> 
> RAID IS NOT A BACKUP.
> 
> Nor is replication.
Exactly. RAID above RAID 0 does provide redundancy towards hard disk
errors. 
It makes the system more robust. But the data is still in the same
set of 
drives. Backup, as with scp, rsync and cron to a different computer
is what 
you need. We backup our computers every hour with the above. It's
very low 
impact and all we can loose are some changes in the last two hours if
the 
system dies during rsync.

David, RAID 0 is not mirroring. What it does is extend capacity over
two or 
more drives. RAID 1 is mirroring. 

Bobby
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