[CentOS] backup server..

TimJowers at Yahoo.Com timjowers at yahoo.com
Thu Sep 14 12:48:55 UTC 2006


   Maybe someone can clear up the grub conf for me. Has anyone gotten this to
work: two IDE/ATA drivers. Slave is a spare duplicate of the master. Goal is to
be able to boot to Spare at any time and run it instead. What step am I
missing?
   When I tried to duplicate a system I failed using this method due to the
/boot configuration being specific to the disk layout in the box. That is, if I
copied disk A to disk B and then wanted to boot to B I believe I would have to
remove A and strap B as the master. Combined SCSI and ATA totally failed on
GRUB knowing which disk is which.  Ended up having to first install the target
slave disk and then moved the disk. Copied everything except /boot. 
   My impression is RAID is the only thing which would work. My goal was
actually to create several systems based on the install of one master system.
The other systems had random numbers of disks and such. The only way i got it
to work was Ch1Master had to be the boot disk in all of them. I mucked around
with 
/boot/grub/grub.conf and device.map to no avail.

Thanks,
TimJowers

--- Sebastien Tremblay <sebastien.tremblay at au.cmpmedica.com> wrote:

> Hi, 
> 
> I've been playing with CentOS quite a bit lately (and I must say it's
> growing on me!! :) and I was now able to convince my boss that we could
> get a box and gradually start migrating our hosting from win2k3 to
> centos.
> 
> So anyway, I've got a new box at the colo ready up and running - P4 3Ghz
> w/HT 2Ghz RAM 2x70Gb HDD, running Centos4.4 fully up-to-date. Now my two
> questions are;
> 
> (1.) In terms of backup, I'd like to have a cron sending out an nightly
> incremental backup of user files. I'd also like to have HDA to be copied
> backed up entirely (maybe weekly) onto HDB (were're not going to use
> 140GB anyway!) so that is hda crashes, I`d swap both of the hdds and
> boot from the backup. Now for that second step, I was reading that dd
> was quite CPU intensive? Would there be other alternatives? Advices on
> doing backups?
> 
> (2.) I've got no physical access to the box, and the box has obviously
> no video or sound. Considering this, would it possible to remotely
> administer the box using VNC in a GUI environment? - I figured 2Ghz
> could probably handle me starting x sometimes...! So if possible.. How
> would I do it? I`m assuming there are no `yum install x`....
> 
> Anyway.. Thanks for any input you may have on the both topics!
> 
> Cheers, 
> 
> Seb.
> 
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