Disk cloning

[Dimitri Yioulos]

On Tue, 20 Jan 2009 14:27:35 +0100, L.P.H. van Belle wrote
> why not use RAID 1 over IP.
> 
> or DRDB
> 
> then you have a exact clone ;-)
> 
> Louis
> 
> >-----Oorspronkelijk bericht-----
> >Van: linux-poweredge-bounces at dell.com 
> >[mailto:linux-poweredge-bounces at dell.com] Namens Dimitri Yioulos
> >Verzonden: 2009-01-20 14:21
> >Aan: linux-poweredge at dell.com
> >Onderwerp: RE: Disk cloning
> >
> >On Tue, 20 Jan 2009 08:06:52 -0500, Petrakis, Peter wrote
> >> http://clonezilla.org/
> >> 
> >> > -----Original Message-----
> >> > From: linux-poweredge-bounces at dell.com [mailto:linux-poweredge-
> >> > bounces at dell.com] On Behalf Of Dimitri Yioulos
> >> > Sent: Tuesday, January 20, 2009 5:58 AM
> >> > To: linux-poweredge at dell.com
> >> > Subject: Disk cloning
> >> > 
> >> > Hello to all.
> >> > 
> >> > I hope it's OK to ask the following:
> >> > 
> >> > I've been asked by a company to remotely clone a working 
> >system. It's
> >> > colo'd in Virginia
> >> > (company HQ is in New York, I'm in Massachusetts).  
> >Physical access to
> >> the
> >> > box, a PE
> >> > 2950, I believe, is via "Remote Hands" only - colo personnel can do
> >> minor
> >> > things,
> >> > including disk swaps.  Down time is really not an option.
> >> > 
> >> > I've considered all of the various cloning tools, and it 
> >seems to me
> >> that
> >> > dd and rsync
> >> > are best-suited to the task.  It looks like "dd if=/dev/sda
> >> of=/dev/sdb
> >> > bs=4096
> >> > conv=notrunc,noerror" will accomplish the cloning (sda and 
> >sdb are of
> >> the
> >> > same make,
> >> > model, and size).
> >> > 
> >> > My questions:
> >> > 
> >> > 1.  Is the above dd command correct?
> >> > 2.  After cloning, must sdb be disconnected so as not to 
> >cause booting
> >> > problems?
> >> > 3.  Do I have to do anything post-cloning to make sdb bootable?
> >> > 4.  What rsync command would I use to keep the two disks synced?
> >> > 
> >> > If anyone has gone through this process, and can provide 
> >guidance, I'd
> >> > appreciate it.
> >> > 
> >> > TIA.
> >> > 
> >> > Dimitri
> >> > 
> >
> >I'm under the impression that one must boot from a Clonezilla 
> >CD in order to use the
> >tool.  Unfortunately, that's not an option.
> >
> >Thanks anyway, though.
> >
> >Dimitri
> >

Set up RAID after the fact?  Isn't there a fair risk of data loss?

Dimitri

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