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Re: [Xen-users] RE: [Xen-devel] Xen-3.0.3 migration problems

  • To: Adam Seering <aseering@xxxxxxxxx>
  • From: Nico Kadel-Garcia <nkadel@xxxxxxxxx>
  • Date: Thu, 28 Dec 2006 18:03:31 +0000
  • Cc: Ian Pratt <m+Ian.Pratt@xxxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx, xen-users@xxxxxxxxxxxxxxxxxxx, ian.pratt@xxxxxxxxxxxx, "Bhatia, Nikhil" <bhatia@xxxxxxxx>
  • Delivery-date: Thu, 28 Dec 2006 10:02:23 -0800
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Adam Seering wrote:
I'm having this same problem. The relocation service is enabled on both machines; neither has a firewall (sure, I care about security...), and there is no firewall between them.

For a live migration, do the dom0 kernels and the source/target PC's hardware have to be the same? I'm migrating from a stock Debian Etch-based Xen AMD64 system on a Pentium D 8xx (no HVM) to a Fedora Core 6 Xen AMD64 system on a Pentium D 9xx, with HVM support enabled.

I've duplicated my relocation domain to both Xen Dom0 servers, and am waiting to reboot one of them to make sure it gets all the options set correctly. (I had to schedule a shutdown anyway.) Unfortunately, it seems to fail silently. "xm list" reports a "migrating-DOMAIN" domain on the source host, and a "DOMAIN" domain on the other target host, but the transfer eventually fails silently and leaves the DOMAIN in question dead on the first host, which is really, really bad practice.

I'm working on an ASUS RS120-E3 system, without VT, all 32-bit systems. I'm also tyring to play with a RHEL 4.92 beta system, but it's been a source of adventures.

On Dec 28, 2006, at 6:32 AM, Nico Kadel-Garcia wrote:

Ian Pratt wrote:
xm migrate --live vcs-dmz02 dmz03.ornl.gov

Error: can't connect: No route to host

Usage: xm migrate <Domain> <Host>

Have you edited /etc/xen/xend-config.sxp on both hosts to enable the
relocation service?


Does it need to be on both hosts? And do there need to be image files *already* in place on the target host in /var/lib/xen/images/? And what if you've been using LVM managed disk partitions for your working Xen images?

Unfortunately, I'm finding the documentation for Xen troublesomely poor.

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