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Re: [Xen-users] live migration with GFS?

To: Theodoro <daniel.theodoro@xxxxxxxxx>
Subject: Re: [Xen-users] live migration with GFS?
From: Kevin McKeon <kevin.w.mckeon@xxxxxxxxx>
Date: Sat, 25 Apr 2009 09:40:03 -0400
Cc: Xen-users@xxxxxxxxxxxxxxxxxxx
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Thanks - Do I need to setup clustering between my DomU's as well? I'm not looking to take advantage of any of the clustering features (like failover of services) I simply want a GFS filesystem to be shared so I can do manual live migrations. 

Like this:
-Both Dom0's will see the same SAN attached GFS, lets call it /myGFS
-The /myGFS mount point will contain domU1.img and domU2.img with their respective config files
-The first Dom0 host will run the domU1.img and the second Dom0 host will run the domU2.img

In this scenario, would I still need clustering setup on my DomUs? 

Thanks for your help!

On Sat, Apr 25, 2009 at 9:03 AM, Theodoro <daniel.theodoro@xxxxxxxxx> wrote:
Yes, you must configure redhat cluster on dom0's so you can use gfs
and also failover between the virtual machines

In case you wanna configure redhat cluster on domU's, use xvm option
on the cluster between the dom0's. Between the domU's
cluster, use the option "virtual machine fence"

On Sat, Apr 25, 2009 at 8:22 AM, Kevin McKeon <kevin.w.mckeon@xxxxxxxxx> wrote:
> Have any of you done this before?
> I want two of my SAN attached CentOS5.3 (x86_64) machines to share a single
> 200GB mount point using GFS. Both Domain-0's will store their DomU disk
> images on the GFS device. This configuration seems like a nice way to
> perform 'live migration'.
> So here's my question:
> Do I have to setup RedHat clustering to do this? If so, would I cluster JUST
> the Domain-0's and NOT the DomU's?
> Any help pointing me in the right direction would be greatly appreciated!
> Thanks
> Kevin McKeon
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users

Daniel Theodoro

(LPIC-1) Junior Level Linux Professional
(LPIC-2) Advanced Level Linux Professional

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