[CentOS-virt] (KVM) How can I migrate VM in a non shared storage environment?

Thu Jun 24 17:02:19 UTC 2010
C.J. Adams-Collier <cjac at colliertech.org>

I often use rsync -a for remote systems or cp -a for local systems.
I've also used dd.  You can have dd output to stdout, pipe it to ssh and
have ssh output to dd on the other end.

You can also connect to a SAN device on the source and dd from the local
block device to the SAN device.

Lots of ways to do it ;)



On Thu, 2010-06-24 at 10:52 -0400, Kelvin Edmison wrote:
> On 24/06/10 7:17 AM, "Poh Yong Hwang" <yongsan at gmail.com> wrote:
> > I have a server running CentOS 5.5 with KVM capabilities. I need to migrate
> > all the VMs to another server with the exact same hardware specs. The problem
> > is it is running on individual harddisks, not shared storage. What is the best
> > way to migrate to minimise downtime?
> I've had good success using dd and nc (netcat) to copy the contents of a
> disk or disk image from one machine to another, and verifying the copy was
> successful with a md5sum or sha1sum of both the original and copied disk.
> Kelvin
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> CentOS-virt at centos.org
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