Xen users - Mar 2006 - domain migration doesnt migrate config files??

So I had to Xen servers running.  Server 1 had 4 domUs on it.  I tried
migrating them to Server 2 and was successful.  Note I did NOT do a
live migration because that locks the sending server up.

So after migrating my domUs to server 2, I went to shutdown server 1
and accidentally powered off server2 also.  When I brought server 2
back up, I could not restart any of the domUs and could not find any
of their config files.

Does migration migrate the entier domain (including sparse files,
config files and so forth) or does it just migrate the data that Xen
stores in RAM to get the machine running on the relocation server??

Cheers
Jeff

--
------------------> Jeffrey Lane - W4KDH <-------------------
                      www.jefflane.org
                    Yet another IT Ronin

The internet has no government, no constitution, no laws, no
rights, no police, no courts.  Don''t talk about fairness or
innocence, and don''t talk about what should be done.  Instead,
talk about what is being done and what will be done by the
amorphous unreachable undefinable blob called "the internet
user base." -Paul Vixie

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> So I had to Xen servers running.  Server 1 had 4 domUs on it.  I tried
> migrating them to Server 2 and was successful.  Note I did NOT do a
> live migration because that locks the sending server up.
:-(
> So after migrating my domUs to server 2, I went to shutdown server 1
> and accidentally powered off server2 also.  When I brought server 2
> back up, I could not restart any of the domUs and could not find any
> of their config files.
>
> Does migration migrate the entier domain (including sparse files,
> config files and so forth) or does it just migrate the data that Xen
> stores in RAM to get the machine running on the relocation server??
The domain''s memory image is transferred.  Virtual disks are not
migrated (are
you using a SAN, NAS, or similar?), and neither are config files.

The domain''s configuration is migrated when the domain moves, but
it''s held in
memory - it''s not stored on the disk.  I believe the state will persist
as
long as that domain is running, and that server is up.

Cheers,
Mark
>
> Cheers
> Jeff
>
> --
> ------------------> Jeffrey Lane - W4KDH <-------------------
>                       www.jefflane.org
>                     Yet another IT Ronin
>
> The internet has no government, no constitution, no laws, no
> rights, no police, no courts.  Don''t talk about fairness or
> innocence, and don''t talk about what should be done.  Instead,
> talk about what is being done and what will be done by the
> amorphous unreachable undefinable blob called "the internet
> user base." -Paul Vixie
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@lists.xensource.com
> http://lists.xensource.com/xen-users
-- 
Dave: Just a question. What use is a unicyle with no seat?  And no pedals!
Mark: To answer a question with a question: What use is a skateboard?
Dave: Skateboards have wheels.
Mark: My wheel has a wheel!

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