Re: [Xen-users] CPU Prerequisites for Live Migrations

[Vern Burke <vburke@xxxxxxxx>]

I don't believe there is, from the Xen standpoint. The required
CPU features depend on what the VM needs.

As an example, in my XCP pool, I run AMD Opteron 248, 250, 275,
and 2214 with nothing but PV Linux guests and migrating works
just dandy.

Vern Burke

SwiftWater Telecom
http://www.swiftwatertel.com
Xen Cloud Control System
http://xencloudcontrol.com

On 10/20/2010 11:38 AM, Hoot, Joseph wrote:
> Hi all,
>
> I'm trying to find documentation to describe what specific CPU flags, models, families requirements are needed for live 
> migrations to be "supported."  I have found mailing list archives which tend to say things like "should" work 
> or "may" work, but nothing that says "is supported." or "is certified."
>
> Basically what I'm wondering is that if I have (2) quad-core cpu's on one 
> server and (2) quad-core cpu's on another server -- both have the same family 
> and stepping and exact same flags.  The only difference is that the model is 
> different.  Is that something that the xen hypervisor typically will support 
> when it comes to live migration?
>
>
> Thanks,
> Joe
>
> ===========================
> Joseph R. Hoot
> Lead System Programmer/Analyst
> (w) 716-878-4832
> (c) 716-759-HOOT
> joe.hoot@xxxxxxxxxxxxx
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> ===========================
>
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